Question

15 men can build a 16.25-m-long wall up to a certain height in one day. How many men should be employed to build a wall of the same height but of length 26 metres in one day?

Solution

Number of men employed to built the 16.25 m long wall = 15 Number of men required to built a 1 m long wall = $\frac{15}{16.25}$                        Number of men that should be employed to built a 26 m long wall = $\frac{15}{16.25}×26$ = 24 ∴ 24 men should be employed to build a wall of length 26 m in a day.MathematicsRS Aggarwal (2017)Standard VII

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