Jim and his dad are bricklayers. jim can lay bricks for a fireplace and chimney in 5 days. with his father's he can build it in 2 days. how long would it take his father to build it alone?

Step-by-step explanation:

we know that

Jim can do the work in 5 days

so

The 100% of the work in 5 days

by proportion

Find out how much can do in 2 days

Let

x ----> the percentage of the work in 2 days

Remember that

Jim and his dad can do the work in 2 days

so

The 100% of the work in 2 days

Jim in 2 days can do 40% of the work

therefore

His dad in 2 days can do (100%-40%)=60%

by proportion

Find out how long would it take his father to build it alone

Let

x -----> the time it take his father to build it alone

Convert to mixed number

mxb67

step-by-step explanation: