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Twelve persons can construct a 320 m long wall in 32 days working 8 hours a day. In how many days can 40 persons construct a 250 m long wall working 10 hours a day?

Twelve persons can construct a 320 m long wall in 32 days working 8 hours a day. In how many days can 40 persons construct a 250 m long wall working 10 hours a day? Correct Answer 6

Given:

Twelve persons can construct a 320 m long wall in 32 days working 8 hours a day

Concept:

M1D1T1/W1 = M2D2T2/W2, Where M = Men, D = Days, T = Time, W = Work

Calculation:

⇒ (12 × 32 × 8)/320 = (40 × D2 × 10)/250

⇒ D2 = 6

∴ The required result will be 6 days.

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