Let the total work be 60 units. (LCM of 15 and 20) Efficiency of A = 60/15 = 4 units/day Efficiency of B = (60/20) × (60/100) = 9/5 units/day Ratio of the efficiency of A : B = 4 : 9/5 = 20:9 Share of A = (20/29) × 1450 = Rs.1000
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