Question
There were 4 times as many boys as girls in the tuck shop at first. After 7 boys left and 2 girls entered the tuck shop, there were 24 more boys than girls remaining in the tuck shop. What was the number of boys in the tuck shop at first?
4 m

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There were 4 times as many boys as girls in the tuck shop at first. After 7 boys left and 2 girls entered the tuck shop, there were 24 more boys than girls remaining in the tuck shop. What was the number of boys in the tuck shop at first?