20. 18 men can earn Rs. 360 in 5 days. How much money will 15 men earn in 9
days?
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Money earned is proportional to number of men and days . So,
Man -days / money =constant
So, let money earned be = ₹ *
> (18 multiple 5) / 360 = (15 multiple 9) / multiple
> multiple = (15 multiple 9 multiple 360 ) /(18 multiple 9) = ₹ 540
Man -days / money =constant
So, let money earned be = ₹ *
> (18 multiple 5) / 360 = (15 multiple 9) / multiple
> multiple = (15 multiple 9 multiple 360 ) /(18 multiple 9) = ₹ 540
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