Answer:
Box A: 7
Box B: 31
Box C:23
Explanation:
Given: 61 in all. 38 in A & B. Difference between A and C is 16
Since A&B have 38. There must be 61-38=23 in C.
Since there is a difference of 16 between A and C, there must be 7 in A (23-16=7). It couldn’t be 23+16=39 in A, because there are only 38 in A and B combined.
So it’s:
Box A: 7
Box B: 31
Box C:23