Question

Q.54.
A is inversely proportional to square of B where as
directly propotional to C. Value of A was 27 when
value of B was 4 and value of C was 6. Find the value
of A when value of B will be 3 and value of C will be 8.
(A) 32
(B) 192
(C) 64
(D) 128​

Answer 1

Answer:

c) 64.

Step-by-step explanation:

A=k.c/b^2.......eqn.

(A=27, B=4 ,c=6. putting all these values in the equation, we get 'k=72'.

now,

putting(B=3, C=8, k=72) to the same equation, we get A=72×8/9=64.