Answer:
The biggest number of children in a group will be:
a. 7
Step-by-step explanation:
The question says they will be grouped separately. That means, according to my understanding, that the boys will be divided into groups as well as the girls. Since there are 14 boys, an even number, the way to obtain the largest groups with the same number is by separating them into two groups. Therefore, we will have two groups of seven boys.
The girls, on the other hand, are in a total of 21. This is an odd number, and the best way to divide it to obtain large groups with the same number is by separating them into three groups. Again, we will have three groups of 7 girls.
However, even if we were to put the boys and the girls together, the answer would remain the same. Fourteen boys plus 21 girls makes 35 children. To divide this odd number into groups with the same number of children in them, we'd have to separate them into five groups. Again, we will have five groups of 7.