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a typist uses a paper of size 32 cm × 20 cm. he leaves a margin of 2 cm each on all the sides .if he leaves a margin of 1 cm only on all the sides ,then what is the percentage of the increase in the area available for typing
3 years ago

Answers

oobleck
2" margin: (32-4)(20-4) = 448
1" margin: (32-2)(20-2) = 540
so % increase is
(540-448)/448 * 100% = ____ %
3 years ago

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