Question

200 labourers need 50 days to construct a road of 4 km long. How many labourers are needed to construct 8 km long in 80 days​

Answer 1

Answer:

250

Step-by-step explanation:

Number of labourers * Number of days worked = Total number of working days

Total number of working days to construct a 4km long road: $200*50=10000$

Total mumber of working days to construct a 8km long road: $10000*2=20000$

Labourers: 20000 ÷ 80 = 250.

250 labourers are required.