A and b can do work in 7.5 day, ratio of a and b work days is 3:5, then find the no. of days in a can do the work
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3x + 5x = 7.5
8x = 7.5
x = 7.5/8
x= 0.94
8x = 7.5
x = 7.5/8
x= 0.94
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