Question

4) The number of polynomials having zeros 1 and -2 is-
a)1
b)2
c) 3
d) more than 3
5) The pair of linear equations 2x+3y=5 and 4x+6y=10 has-
a) Unique Solution
c) No solution
b) Infinite many solution d) None of these
6) If x=a , y=b is the solution of pair of equation x-y=2 and x+y=4, then the
respective values of a and bare
a) 3,5
b) 5,3
c) 3,1
d) -1,-3
7) The two consecutive odd positive integers, sum of whose squares is 290 are
a) 13,15
b) 11,13
c) 7,9
d) 5,7
8) Which of the following are the roots of the quadratic equation X-9x+20=0 b
factorisation?
a) 3,4
b) 4,5
c) 5,6
d) 6,7
9) Which term of AP:21,42,63.........is 210?
a) 9
10) Two circles are always-
a) Congruent
c) Neither similar nor Congruent
b) Similar
d) None of these
b) 10
c) 11"
d) 12​

Answer 1

Answer:

d)more than 3

b) Infinite many solution

c) 3,1

b) 11,13

b) 4,5

a) 9

b) Similar