Wages of a labourer are increased by 15% and his working hours are also increased by 9%. Initially, he used to earn ₹18,000 per month for 300 hours in a month. Find his total earning in a month now. A) ₹21,000 B) ₹22,563 C) ₹23,623 D) ₹24,868

₹21,000
₹22,563
₹23,623
₹24,868

Correct answer: ₹22,563

Solution

The wage increases by 15% and the working hours increase by 9%, so total earning increases by a factor of $1.15 \times 1.09$. Applying this to ₹18,000 gives ₹22,563.

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