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


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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