Question 657439
If there are 42 children, and 2/3 are boys, that means there are (2/3)42 = 28 boys and 14 girls
Let s = the number of stickers received by the boys
Then each girl received 2s stickers
We can write the following equation for the total number of stickers:
840 = 28s + 14(2s) = 56s
s = 840/56 = 15
So the boys got 15 stickers and the girls got 30 stickers