Out of 1200 pupils in a school, 900 are boys and the rest are girls. If 20% of the boys and 30% of the girls wear spectacles,find: many pupils in wear spectacles
b.what percent of the total number of pupils wear spectacles.

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  1. (a) .20*900 + .30*300
    (b) divide that by 1200

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  2. Out of 200 pupils in a school,900 are boys and the rest are girls.if 20% of the boys and 30% are girls wear spectacles, find:. How many pupils in all wear spectacles

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  3. 1050

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  4. A, is 270 and
    B is 22.5%

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