4/7 of the children in the hall are girls and the rest are boys. If there are 12 more girls than boys, how many children are there in the hall?
(A) 5000
(B) 6500
(C) 77
(D) 84
4/7 of the children in the hall are girls and the rest are boys. If there are 12 more girls than boys, how many children are there in the hall?
(A) 5000
(B) 6500
(C) 77
(D) 84