Each boy spent $210 on the shopping trip. This is based on the given relationships between the amounts spent by boys and girls, and solving the equations derived from the problem. The total amount spent was $2100 for all seven children combined.
;
the five boys spent 1/2 of the 2100 = 1050 dollars
each boy then spent 1/5 of this
1/5 * 1050 =** $210 each boy ** ;