1.

48 Persons can make a bridge in 15 days working 6 hours a day. In how many days will 30 persons working 8 hours a day complete the work?1. 15 days2. 10 days3. 18 days4. 14 days

Answer» Correct Answer - Option 3 : 18 days

Given:

48 Persons make a bridge in 15 days working 6 hours a day.

Concept Used:

M1 × H1 × D1 = M2 × H2 × D2

Where,

M = No of persons

H = Hours of working in a day

D = No of days to complete the work

Calculation:

M1 × H1 × D1 = M2 × H2 × D2

⇒ 48 × 15 × 6 = 30 × 8 × D2

⇒ D2 = 18 days

∴ 30 men working 8 hours a day can complete in 18 days.



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