the average temeperature in mercara from monday to thursday was 35 degree centigrade and from tuesdat to frriday was 38 degree centigrade . find the temperatures on monday and friday, if the ratio of temperatures on these two days is 5:7.

dear student

let the temperature of monday and friday be 5x and 7x

​then

and let the sum of temperatures from tuesday to thursday be yaverage temeperature in mercara from monday to thursday was 35 degree centigrade35=5x+y4average temeperature in mercara from tuesday to friday was 38 degree centigrade38=7x+y45x+y=1407x+y=152subtracting we get2x=12x=6temperature on monday and friday=30, and 42

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