Question

8. P, Q and R are three cities. The ratio of average temperature between P and Q is 11:12
and that between P and R is 9 : 8. The ratio between the average temperature of Q and R
is
(a) 22:27
(b) 27:22
(c) 32:33
(d) none of these​

Answer 1

Answer:

Pwe have p: Q and P: R...in this ratio P is common . so first of all we do same- p/Q = 11/12 × 9/9 =99/108 p/R =9/8 × 11/11 = 99 /88 so now P:Q:R = 99: 108 : 88 Q:R = 108 : 88 or 27: 22 which is option b.