A team of 6 girls and 4 boys put together a 2200-piece jigsaw puzzle in 4 hours. The same jigsaw puzzle was put together in 8 hours by a team of two girls and five boys.
Who are better at putting jigsaw puzzles together, boys or girls, and by how much?
Insert +, -, x or / in suitable places on the left hand side of = so as to make the above equation true:
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Boys are so way better than girls.
I do have the same solution like Jorge Pardo wrote here. Just a simple math. 🙂
6G +4B = 2200 pieces/4 hrs
2G + 5B = 2200 pieces per 8 hrs
B=25 pieces/hr
G=75 pieces/hr
I do not see if is a match among boys Vs girls!
From the calculation it seems that girls are better in putting jigsaw puzzles together than boys by 3 times. 1 girl is equal to 3 boys.
Girls are three times better than the boys, putting in 75 pieces per hour versus 25 forthe boys.
Girls place 75 pieces/hr each and boys place 25 pieces/hr each.
6G +4B = 2200 pieces/4 hrs
2G + 5B = 2200 pieces per 8 hrs
B=25 pieces/hr
G=75 pieces/hr