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Trava [24]
3 years ago
7

When 40% of the girls left the school assembly, the ratio of the number of boys to girls became 3 to 4. If there were w girls wh

en the assembly started, what was the total number of boys when the assembly started?
Mathematics
2 answers:
serious [3.7K]3 years ago
5 0
There were 15 boys at the beginning of the assembly and 28 girls
Luba_88 [7]3 years ago
3 0
I am pretty sure the answer is 15 boys at the beginning of the assembly.
That would mean that there were 28 girls there, and if 40% of them left, which would mean that 8 left, leaving 20 girls. This would leave the assembly with a 3:4 ratio of boys to girls.
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