Question
In a hall, there are 151 boys and girls altogether. '1/3 of the boys and '1/5 of the girls wear glasses. The total number of boys and girls who wear glasses is 45. How many boys are there in the Hall?
Answers
PsyDAG
More data needed.
1/3b + 1/5g = 45
1/3b + 1/5g = 45
oobleck
1/3b + 1/5g = 45
b+g = 151
or,
5b+3g = 675
3b+3g = 453
--------------------
2b = 222
b = 111
b+g = 151
or,
5b+3g = 675
3b+3g = 453
--------------------
2b = 222
b = 111