A classroom has equal number of boys and girls. Eight girls left to play Kho-Kho, leaving twice as many boys as girls in the classroom. What was the total number of girls and boys present initially?
None of these
A classroom contains an equal number of boys and girls.
b = g
If 8 girls leave, twice as many boys as girls remain.
b = 2(g-8)
Replace g with b
b = 2(b-8)
b = 2b - 16
16 = 2b - b
b = 16 boys, then 16 girls originally
Total number of 32 boys and girls
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