Question

the minimum temperatures of a place in a certain week beginning from monday are 20°c , 17.5°c, 21°c, 16.5°c, 17.8°c and 18.2°c. the minimum temperature for sunday was not known. if the average minimum temperature for the whole week was 19°c, what was tge minimum temperature on sunday?

Answer 1

Let the minimum temperature on sunday be x
Average temperature = $\frac{Sum of the minimum temperature of the week}{7}$
Average temperature = $\frac{20+17.5+21+16.5+17.8+18.2+x}{7}$
Average temperature = $\frac{111}{7}$
Average temperature = 15.9(approx.)

Answer 2

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