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99 boys and 1 girl are in a lecture theatre. how many boys must leave the theatre so that the percentage of boys becomes 98%?​
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99 boys and 1 girl are in a lecture theatre. how many boys must leave the theatre so that the percentage of boys becomes 98%?​

User Franck
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99 boys and 1 girl makes 99 percent of boys. To make it 98%, 50 boys must leave the theatre, so there are 49 boys and 1 girl, making 98% of boys.

User Simon Hellinger
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