Question

A 20 km road can be built by 2 machines in 30
days. How many days it will take to build the road
by 5 machines?​

Answer 1

Step-by-step explanation:

Answer for the ques above is 75 days

Answer 2

Answer:

Step-by-step explanation:

The number of machines is inversely proportional to time taken but the distance i.e 20km will remain constant. Thus, we will write the formula,

$y=\frac{k}{x} \\\\5=\frac{20}{x} \\\\5x=20\\x=4$

It will take 5 machines 4 days to build the road.