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A contractor undertook a contract for a construction work to be completed in 180 days. He engaged 120 labours. But only 1/6th of the work was done in 1/5th of the scheduled time. The additional number of labours that will be required to complete the work in time, is1). 202). 403). 304). 15 |
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Answer» Total Scheduled TIME = 180 DAYS 1/5th of the scheduled time = 180/5 = 36 days According to the given information, 120 labours can do 1/6th of the total work in 36 days ∴ remaining work = 5/6th of total work $(\FRAC{{{M_1}{D_1}}}{{{W_1}}} = \frac{{{M_2}{D_2}}}{{{W_2}}})$ Where, M = Number of men, D = number of days, W = Amount of work $(\RIGHTARROW \frac{{120 \TIMES 36}}{{\frac{1}{6}}} = \frac{{{M_2}\; \times 144}}{{\frac{5}{6}}})$ ⇒ M2 = 150 ∴ Additional Labours required = 150 – 120 = 30 |
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