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Areafollowing statements is true ?(a) A remains unchanged(c) A is decreased by 0.1%of a rectangle is A. If its length is reduced by 10% and its breadth is increased by 10% then which of the(b) A is decreased by 1(d) A s increased by 0.1% |
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Answer» suppose initial length and breadth is 1 so area is 1now new length is 0.9 and new breadth is 1.1so area=(1.1)(0.9)=0.99so decrease in percentage=(1-0.99)×100=1% |
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