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720 sweets were distributed equally among children in such a way that number of sweets received by each child is 20% of the total number of children. How many sweets did each receive ?
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- 12
- 14
- 11
- 15
Correct Option: A
Let the total number of children be N.
Then, N x (20/100) x N = 720
⇒ N2/5 = 720
⇒ N2 = 5 x 720 = 5 x 5 x 144
∴ N = √5 x 5 x 144 = 60
Number of sweets received by each child = (20/100) x 60 = 12
