If a,b,c and d are in proportion then-

• ab=cd

• ad=bc

• a 2=bcd

• ac=bd

If p∞q and p=6 then q=30,now if p=2 then what is the value of q?

• 15

• 10

• 20

• 12

In n is natural number then how many natural numbers are there between n2 and (n+1)2 ?

• n

• n2

• 2n

• 2(n+1)

Which one of the following is a square of an even number?

• 169

• 225

• 576

• 441

Which one of the following is not an irrational number?

• √2.25

• π

• √2

• √8

If HCF(96,404)=4 then LCM(96,404)=

• 4

• 404

• 6969

• 9696

For two positive integers a and b there exist two unique integers q and r such that a= bq+r, satisfying.

• 0 < r

• 0 ≤ r ≤b

• 0 < r ≤ b

• 0 ≤ r

Which one of the following is not a polynomial?

• a2 -3x + √2

• x3 + x2 +2

• x + 1/x

• 1/2x2 -4x +1

If one zero of the polynomial x2 -2(a-2)x-3 is 3 then the value of a is-

• 3

• 6

• -3

• 2

Sum of the zeroes of the quadratic polynomial; 2x2 -5x +6 is

• -5/2

• 5/2

• 3

• 2/5