There are two groups of children (A and B). certain number of chocolates are distributed receives the same number of chocolates. If 200 less chocolates were distributed among the children in A and 400 more chocolates were distributed among the children in B, the numbers of chocolates received by both the groups would be the same. If there were 10 less children in A and 20 more children in B, both the groups would have the same number of children. Find the number of chocolates received by each child in A.