Question

P varies inversely with the square of Q. When Q is 8, P 9. Find the value of P when Q is 3.

Answer 1

P

`\alpha`

1/q²

P=k/Q²

K=P×Q²

Where P=9

Q=8

K=?

K=9×8²

K=9×64

K=573

So where K= 573

Q=3

P=?

P=K/Q²

P=573/3²

P=573/9

P=63.67