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 Qand R ?
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 Qand R ?