A boy who was asked to find31% 2of a sum of money misread

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A boy who was asked to find
3 1 %
2

of a sum of money misread the question and found
5 1 %
2

of it. His answer was ₹ 220. What would have been the correct answer ?

1. 120
2. 140
3. 160
4. 150

Correct Option: B

Let sum of money be x

∴	11	% of x = 220
	2

⇒ x =	220 × 200	= 4000
	11

∴ 3	1	% of 4000 =	7	×	4000	= ₹ 140
	2		2		100