Thursday, 4 May 2017

assignment class 10th

Summer Vacations Assignment
Class: - X
Maths

Chapter: - Polynomials
1.      If  and  are the zeroes of the quadratic eqn.   , Find the value of ‘a’ If
2.      If   are the zeroes of p(x) =    , then find the value of.
3.      Find the quad. Polynomial with zeroes.
4.      For what value of   k, -4 is a zero of p(x) =.
5.      Find a quad. Polynomial whose zeroes are.
6.      Form a quad. Poly. Whose one zero is 8 and the product of zeroes is   -56.
7.       If the poly.      Is divided by another poly.   , the remainder comes out to be    ax + b. Find   a & b.
8.      If  are the two zeroes of poly.   , Find a quad. Poly. Whose zeroes are   .
9.      If 2   & -3 are the zeroes of quad. Poly.    , Find the values of a & b.
10.  Obtain all the zeroes of   .
11.  On dividing    by poly.  P(x), the quotient and remainder are   resp. Find p(x).
12.  On dividing     by the poly.   g(x) the quotient and remainder were   resp.  Find g(x).
13.  Find the value of   a & b so that the poly.  P(x) =   is exactly divisible by    .
14.  What must be added to polynomial;    so that the resulting polynomial is exactly divisible by    .
15.  If    are the zeroes of the quad. Poly.   f(x)  =    such that   , find the value of  k .
16.  If one of the zero of a quad. Poly.   f(x)  =    is the –ive of the other, Find the value of  k .
17.  If two zeroes of p(x) = are   2 , Find the other zeroes.
18.                        If the sum of zeroes of a given polynomial f(x) = -3k -x+30 is 6. Find the value of K.
19.                        Form a cubic polynomial with zeroes 3, 2 and -1.
20.                        Give an example of polynomials p(x),g(x),q(x),r(x) which satisfies division algorithm and deg. p(x)= deg. g(x)
21.                        Check whether the polynomial  -3 is a factor of polynomial 2 + 3 - 2 -9t –12 by applying division algorithm.
22.                        If a and b are the zeroes of the polynomial k +4x+4 show that find the value of    +
23.                        Obtain all other zeroes of 3+6-2 -10x-5 if two of its zeroes are  and -
24.                        Find a quadratic polynomial, the sum and product of whose zeroes are   and -   respectively. Also find its zeroes.
25.                        If the remainder on division of   + 2 +kt +3 by k-t is 21,find the quotient and the value of k. hence, find the zeroes of the cubic polynomial   + 2 +kt -18
26.                        If a and b are zeroes of  6  +x-2=0 find   +
27.                         Find the zeroes of 4 + 8x
Chapter – 3
28.  Draw the graph of the pair of eqns.   2x + y = 4 & 2x – y = 4. Write the vertices of the triangle formed by these lines and the y- axis. Also find the area of the triangle.
29.  For what value of k   2x + 3y =4 & (k + 2) x + 6y = 3k + 2 will have infinitely many soln.  
30.  For what value of  p  will the following system of eqns. Have no soln.                                 (2p – 1) x + (p – 1) y = 2p + 1 &     3x + y = 1.
31.  For which value of   p  &  q  will the following pair of linear eqns. Have infinite no. Of soln.      4x + 5y = 2    &   (2p + 7q) x + (p + 8q) y = 2q – p + 1.
32.  Find the value of  a  &  b   for which the system of linear eqns. Has infinite no. Of solution   (a + b)x – 2by  =  5a + 2b + 1    &    3x – y  = 14.
33.  For which values of   p  &  q  will the following pair of linear  eqns. Have infinitely many solutions.    (p – 1) x + 3y = 2   & 6x + (2 – q) y = 6.
34.   Find the soln. of the pair of eqns.        &  . Hence, find   if   y = λx + 5.
35.  Solve   x + y = a – b   &   ax – by =  .
36.  The annual incomes of   A & B are in the ratio of   5: 4 & their monthly expenditure are in the ratio 7: 5. If each saves Rs.  3000 per month. Find the monthly income of each.
37.  If   2x + y =23   & 4x – y = 19. Find the values of   5y – 2x   &    .
38.  Solve   2(3u – v) = 5uv    &   2(u + 3v) = 5uv.
39.  It can take 12 hrs to fill a swimming pool using two pipes. If the pipe of larger diameter is used for 4 hrs and the pipe of smaller diameter is used for 9 hrs. , only half of the pool is filled. How long would it take for each pipe to fill the pool separately?
40.  8  men  &  12 boys can finish a piece of work in  10  days while  6  men  &  8 boys can finish in  10  days. Find the time taken by one man alone and that by one boy alone to finish the work.
41.   Solve    .
42.                        Find the value of ‘a’ so that the point(3,9) lies on the line represented by 2x-3y=5
43.                        Find the value of k so that the lines 2x – 3y = 9 and kx-9y =18 will be parallel.
44.  Determine the value of ‘a’ if the system of linear equations 3x+2y -4 =0 and 9x – y – 3 = 0 will represent intersecting lines
45.  Write any one equation of the line which is parallel to 2x – 3y =5
46.  Solve the equation:
                             px + qy = p – q
       qx – py = p + q.
47.  Solve the equations by using the method of cross multiplication:
         x + y =7
      5x + 12y =7
48.  A man has only 20 paisa coins and 25 paisa coins in his purse, if he has 50 coins in all totalling Rs. 11.25, how many coins of each kind does he have.
49.  Draw the graphs of the equations
                          4x – y = 4
                          4x + y = 12
                    Determine the vertices of the triangle formed by the lines representing these    equations and the x-axis. Shade the triangular region so formed.
50.  Solve Graphically
                      x – y = -1 and
                     3x + 2y = 12
                   Calculate the area bounded by these lines and the x- axis .
51.  Students of a class are made to stand in rows. If one student is extra in a row, there would be 2 rows less. If one student is less in a row there would be 3 rows more. Find the number of the students in the class.
                                             QUADRATIC EQUATION
52.      find the values of k for which the given equation has real roots:
      a) kx² − 6x –2 = 0                                b) 9x² + 3k x +4 = 0                   c) 5x² − kx +1 = 0
53.       Determine the positive values of  k for which the equations x² + kx +64 = 0 and x² − 8x +k = 0 will both have  real roots.
54.       If –5 is a root of quadratic equation 2x² + px –15 = 0 and the Q.E p(x²+x)+ k = 0  has equal roots.
55.     A two digit number is such that the product of its digits is 14. When 45 is added to the number, then the digits interchange their places. Find the number.
56.       A two digit number is seven times the sum of its digits is also equal to 12 less than three times the product of its digits. Find the number.
57.    300 apples are distributed equally among a certain number of students. Had there been 10 more students, each would have received one apple less. Find the number of students.         
first train travels 5km/hr faster than the second train. If after two hours they are 50km
       apart. Find average speed of each train.
58.    A chess board contains 64 equal squares and area of each square is 6.25 cm². A border round the board is 2cm wide. Find the length of the side of chess board.
59.   A person on tour has Rs.360 for his expenses. If he extends his tour for 4 days, he has to cut down his daily expenses by Rs.3. Find the original duration of the tour.
60.    Rs.6500 were divided equally among a certain number of persons. Had there been 15 more persons, each would have got Rs 30 less. Find the original no of persons.
61.    Had Ajita scored 10 more marks in her mathematics test out of 30 marks, 9 times these marks would have been the square 11. The denominator of a fraction is one more than twice the numerator. If the sum of the fraction and its reciprocal is 2 16/21, find the fraction.
62.   . A chess board contains 64 equal squares and area of each square is 6.25 cm². A border round the board is 2cm wide. Find the length of the side of chess board.
63.    A person on tour has Rs.360 for his expenses. If he extends his tour for 4 days, he has to cut down his daily expenses by Rs.3. Find the original duration of the tour.
64.    Rs.6500 were divided equally among a certain number of persons. Had there been 15 more persons, each would have got Rs 30 less. Find the original no of persons.
65.    Had Ajita scored 10 more marks in her mathematics test out of 30 marks, 9 times these marks would have  been the square of her actual marks. How many marks did she get in the test?
66.    A train travels at a certain average speed for a distance of 63 km and then travels a distance of 72 km at an  average speed of 6 km/h more than its original speed. If it takes 3 hours to complete the total journey,what is its original average speed?
67.    Find a natural number whose square diminished by 84 is equal to thrice of 8 more than the given number.
68.    A natural number, when increased by 12, equals 160 times its reciprocal. Find the number.
69.   8. A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same
70.         distance if its speed were 5 km/h more. Find the original speed of the train.
71.    If Zeba were younger by 5 years than what she really is, then the square of her age (in years) would have been 11 more than five times her actual age. What is her age now?
72.    At present Asha’s age (in years) is 2 more than the square of her daughter Nisha’s age. When Nisha grows to her mother’s present age, Asha’s age would be one year less than 10 times the present age of Nisha.Find the present ages of both Asha and Nisha.
                                PROBABILITY
73.   A die is thrown once. Find ( a) P( a number ≥ 3)     (b)  P ( a number < 7)
          (c) P(odd number)        (d) P(prime number)  (e) P( between 2 and 6)
74.  In a single throw of two dice what is the probability of getting
       (a) both odd numbers  (b) a total of 9 or 11     (c) same no. on both the dice( doublet)
       (d) the sum of nos. as whole no.   (e) the sum of nos. as prime nos.
       (f) prime as a whole    (g)  sum of nos. less than 9  (h) sum more than 9
       (i) number as a whole divisible by 2 and 3   (j) number as a whole divisible by 2 or 3
75.  One card is drawn from a well shuffled deck of 52 cards . Find the probability of
      Drawing:- (a) an ace                   (b) a jack                            (c) red face card
                        (d) black queen         (e) red card                         (f) 10 of black suit
                        (g) 7 of club              (h) a diamond face card      (i) non ace non face card
                        (j)  a heart                 (k)  non face card                (l)  a king or a queen
                        (m) neither king nor a queen                       (n) a card of spades or an ace
                        (o)  a face card          (p) neither a red face card nor queen
76   The king , queen and jack of clubs are removed from a pack of 52 playing cards. The remaining cards are then well shuffled and one card is selected at random. Find the probability of getting
(a) a heart     (b) a king   (c) a club  (d) the 10 of hearts
77.  All the three face cards of spades are removed from a well shuffled pack of 52 cards
      A card is drawn at random from the remaining pack . find the probability of getting
      (a) a black face cards      (b) a queen      (c) a black card
78.  Two unbiased coins are tossed. Find the probability of getting
     (a) exactly two head         (b) exactly one tail                      (c) at least two tails
     (d) at most two tails          (e) not less than one head( or at least one head)    (f) no tail
79.  Three coins are tossed simultaneously. Find the probability of getting
      (a) head and tail alternately     (b) at least two head               (c) at most one head
80.  In a family, there are three children. Assuming that chances of a child being a male or
     a female are equal. Find the probability that (a) there is one girl in a family                   (b) there is no female child in the family (c) there is at least one male child in the family
81.  What is the probability of having 53 Tuesdays in a (a) non-leap year    (b) leap year?
82. If the probability of winning the game is 5/11. What is the probability of losing?
83. Savita and Hamida are friends . What is the probability that both will have
      (a) different birthday ?                   (b) the same birthday?
84. A box contains cards bearing numbers from 6 to 70. If one card is drawn at random
      from the box, Find the probability that it bears             (a) one digit numbers
      (b) no. divisible by 5                                                      (c) no. divisible by 3 and 5
      (d)  no. divisible by 3 or 5                                              (e) no. which is perfect square
85. A box contains 20 balls bearing numbers 1,2,3,4,…….20, A ball is drawn at random
      from the box. What is the probability that the no. on the ball is
      (a) an odd no.    (b) divisible by 2or 3   (c) prime no. (d) not divisible by 10?
86. A bag contains 5 white balls, 7 red balls, 4 black balls and 2 blue balls. One ball is
      Drawn at random from the bag. What is the probability that the ball drawn is
       (a) white or blue     (b) red or black        (c) not white         (d) neither white nor black
87. Two customers are visiting a particular shop in the same week( Monday to Saturday)
      Each is equally likely to visit the shop on any one day as on another. What is the
      probability that both will visit the shop on (i) the same day (ii) different days
      (iii) consecutive days



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