Question

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

Answer 1

P /Q = 11 / 12 P / R = 9 / 8

Q / R = P/R / P/Q = 9/8 / 11/12 = 9*12 / 8*11 = 27/22

Q : R = 27 : 22

Answer 2

P:Q=11:12 Q:P=12:11=108:99
P:R=9:8 = 99:88
SO Q:R=108:88=27:22(ANS)