Question

If 20 engineers and 20 workers can together construct a 20 km road in 20 days then 40 engineers and 40 workers together construct 40km road in how many days?

Answer 1

Answer:

The answer will be 40 days

Answer 2

It takes 20 days to finish it.

Step-by-step explanation:

Since we have given that

Number of engineers = 20

Number of workers = 20

Length of road = 20 km

Number of days they can finish their work = 20

If the number of engineers = 40

Number of workers = 40

Length of road = 40 km

According to question,

$\dfrac{(20E+20W)\times 20}{20}=\dfrac{(40E+40W)\times x}{40}\\\\40\times (20E+20W)=2(20E+20W)\times x\\\\x=20\ days$

Hence, it takes 20 days to finish it.

# learn more:

For tree plantation 30 workers dig 20 pits in 40 days. If 40 workers have to dig 30 pits, how many days will be require?

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