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Asked by Antha Nubo

Out 400, 300 are offering mathematics and 190 are offering chemistry .how many students are offering both mathematics and chemistry. If only 70 student offering neither mathematics nor chemistry.
3 years ago

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Answered by oobleck
You want x such that
300+190 - x = 400-70
3 years ago
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Out 400, 300 are offering mathematics and 190 are offering chemistry .how many students are offering both mathematics and chemistry. If only 70 student offering neither mathematics nor chemistry.

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