a tap supplies water at 26oC while another supplies water at 82oC. If a man wishes to bathe with water at 40oC the ratio of hot mass of hot water to that of cold water required is
A.
1:3
B.
3:1
C.
3:7
D.
7:3
E.
15:8
Correct Answer: Option A
Explanation
heat supplied by hot water = heat gained by cold water M1C(82 - 40) = M2C(40 - 26)
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