The average temperature of Mumbai on Monday, Tuesday and Wednesday is 30°C and that on Wednesday, Thursday, Friday and Saturday is 28°C. What is the average temperature on Wednesday and Thursday, if the average temperature on all six days is 27°C
36°C
38°C
40°C
Cannot be determined
M + Tu + W = 30 × 3 = 90
W+ Th + F + S = 28 × 4 = 112
M + Tu + W + Th + F + S = 27 × 6 = 162.
Using these three equations,
W = 90 + 112 - 162 = 40°C
However, the temperature on Thursday cannot be found.
Hence, the required average cannot be found.
Hence, option d.
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