Risa gave 6 stickers to every boy and 9 stickers to every girl in her class. There were 6 more boys than girls in the class. She gave away a total of 246 stickers.
- How many children were there in the class?
- How many less stickers were given to the boys than the girls?
(a)
There were more boys than girls in class.
If we remove the 6 extra boys, the number of boys and girls will be the same.
Risa would give away less stickers.
Number of less stickers that Risa needed to give away if there was 6 less boys
= 6 x 6
= 36
Number of stickers she would need if there was 6 less boys
= 246 - 36
= 210
Number of stickers to give for every 1 boy and 1 girl
= 6 + 9
= 15
Number of sets of 1 boy and 1 girl
= 210 ÷ 15
= 14
Number of girls = 14
Number of boys
= 14 + 6
= 20
Number of children
= 14 + 20
= 34
(b)
Number of stickers given to the boys
= 20 x 6
= 120
Number of stickers given to the girls
= 14 x 9
= 126
Number of less stickers given to the boys than the girls
= 126 - 120
= 6
Answer(s): (a) 34; (b) 6
