Question 64
The average daily expenditure of Mohan over 4 days is ₹120. If his expenditure on the first 3 days are ₹60, ₹150 and ₹140, respectively, then what is his expenditure on the $$4^{th}$$ day?
Solution
The average daily expenditure of Mohan over 4 days is ₹120.
Total expenditure of Mohan over 4 days = $$120\times4$$ = 480
If his expenditure on the first 3 days are ₹60, ₹150 and ₹140, respectively, then his expenditure on the $$4^{th}$$ day = 480-(60+150+140)
= 480-350
= ₹130
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