If `4,\ a ,\ a ,\ 36` are in proportion, then `a=` 24 (b) 12 (c) 3 (d) 24

If 4,\ a ,\ a ,\ 36 are in proportion, then a= (a) 24 (b) 12 (c) 3 (d) 24

The mean proportional of 6 and 24 is (a)15 (b) 12 (c)8 (d) 144

The mean proportional of 6 and 24 is (a)15 (b) 12 (c)8 (d) 144

If a, b, c, d are in proportion, then a : b = c : d and written as a : b : : c : d . Find x if 36, 24, x, 16 are in proportion.

24, 36, x are in continued proportion, find the value of x.

If 22, x, 88 are in a continued proportion, find the value of x. A. 24 B. 33 C. 44 D. 36

Assertion : 16 : 24 :: 20 : 30 are in proportion. Reason : If a, b, c, d are in proportion, then a : c = b : d.

If 2x+y+lambda=0 is a normal to the parabola y^2=-8x , then lambda is 12 (b) -12 (c) 24 (d) -24

If 2x+y+lambda=0 is a normal to the parabola y^(2)=-8x, then lambda is 12 (b) -12 (c) 24 (d) -24

If 5:4 :: 30 : x , then the value of x is (a) 24 (b) 12 (c) 3/2 (d) 6