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The diagonal and one side of a rectangle are 5 m and 3 m. What is the percentage saving of a man who walks along the diagonal instead of the two sides?









Ans: a

The side = $√{5^2 - 3^2}$ = $√{25 - 9}$ = 4. So the saving = (3 + 4) - 5 = 2 meters. So the %-age saving is $2/7$ × 100 = ${200/7}$, which is same as: $28{4/7}$%.

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