A tap supplies water at 30°C while another supplies at 86°C. If a man wishes to bath with water at 44°C, calculate the ratio of mass of hot water to that of cold water required
A
1:3
B
3:1
C
3:7
D
7:3
E
15:8
Verified Correct Answer: A.
Physical Principles & Numerical Solution
\(M_Hc\theta_{H} = M_cc\theta_c\)
\(M_h(86-44) = M_c(44-30)\) thus giving 1:3
Source: Myschool Past Questions Archive (Record #26249)