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There are some boys and girls in a ro...

There are some boys and girls in a room. The square of the number of girls is less than the square of the number of boys by 28. If there were two more girls, the number of boys would have been the same as that of the girls. The total number of boys and girls in the room is (a) 7         (b) 10      (c) 14        (d) 56

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