Question

10 painter can paint a building in
16 hours. Due to bad weather, only
8 painters report to work, How long
will it take to paint the building?​

Answer 1

Answer:

inverse proportion

Explanation:

10 x 16 = 8  y

160 = 8 y

160/8= y

20 =y

therefore 20 hours

Answer 2

Given,

10 painters can paint a building in 16 hours.

To Find,

The time taken by 8 painters to paint the same building.

Solution,

According to the given question,

Time taken by 10 painters to paint the building = 16 hrs

Time taken by 1 painter to the building = 10/16 hrs.

Now , we need to calculate the time taken by 8 painters to paint the building.

So,

Time taken by 8 painters to paint the building = 10/16*8 = 10*2 = 20 hrs.

Hence, the time taken by 8 painters to paint the building is 20 hours.