A tap supplies water at 30°C while another supplies at 86°C. If a man wishes...
PHYSICS
WAEC 1994
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
Correct Answer: A. 1:3
Explanation
\(M_Hc\theta_{H} = M_cc\theta_c\)
\(M_h(86-44) = M_c(44-30)\) thus giving 1:3
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