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12 boys decided to constribute Rs. 750 each to an Orphange. Suddenly few of them boys dropped out and consequently the rest had to pay Rs. 150 more. Then the number of boys who dropped out?

Correct Answer: 2

Explanation:

Total money decided to contribute = 750 x 12 = 9000


Let 'b' boys dropped


The rest paid 150/- more


=> (12 - b) x 900 = 9000


=> b = 2


Hence, the number of boys who dropped out is 2.


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