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Question

decrease 64 cm in the ratio 3:4.

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Solution

Let the number when 64 cm is decreased in ratio 3:4 be x cm.Therefore,x:64=3:4x64=34Multiplying both sides by 64, we getx64×64=34×64x=3×16=48Hence, decreasing 64 cm in ratio 3:4 gives 48 cm.

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