10 men working 5 hours/day earn ₹300. How much money will 15 men working 10 hours/day earn?
Given, 10 men working 5 hours/day earn ₹300
1 man working 5 hours/day earn ₹30
15 men working 5 hours/day earn 30 x 15 = ₹450
$$\Rightarrow$$ 15 men working 10 hours/day earn 450 x 2 = ₹900
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