# 16 children are to be divided into two groups A and…

Are you looking for correct answer of 16 children are to be divided into two groups A and…? Here we have shared detailed answer with explanations.

### 16 children are to be divided into two groups A and B of 10 and 6 children. The average percent marks obtained by the children of group A is 75 and the average percent marks of all the 16 children is 76. What is the average percent marks of children of group B ?

1. A. $$77\frac{1}{3}$$
2. B. $$77\frac{2}{3}$$
3. C. $$78\frac{1}{3}$$
4. D. $$78\frac{2}{3}$$

eqalign{ & = frac{{left( {76 times 16} right) - left( {75 times 10} right)}}{6} cr & = left( {frac{{1216 - 750}}{6}} right) cr & = frac{{466}}{6} cr & = frac{{233}}{3} cr & = 77frac{2}{3} cr}