A tap supplies water at 26°C while another supplies water at 82°C. If a man wishes to bathe with water at 40°C, the ratio of hot water to that of cold water required is
1:3
3:1
3:7
7:3
15:8
Correct answer is A
heat supplied by hot water = heat gained by cold water M1C(82 - 40) = M2C(40 - 26)
\(\frac{M_2}{M_1}\)= \(\frac{14}{42}\)
= 1: 3