Loading [MathJax]/jax/output/HTML-CSS/jax.js
Home / Aptitude Tests / Mathematics / Given that \(P\propt...
Given that P1r and p = 3 when r ...

Given that P1r and p = 3 when r = 16, find the value of r when p = 3/2

A.

48

B.

64

C.

72

D.

324

Correct answer is B

P1rP=3r=16P=kr3=k1631=k4K=12K=12;Pr=kr=kpr=(k)2P=122÷32=(121×23)=82r=64