Question

If 4 boys can paint a fence in 5 hours
how many hours would it take 3 boys to
paint the same fence?​

Answer 1

Answer:

$6 \frac{2}{3} hours$

Explanation:

Given,

• 4 boys can paint a fence in 5 hours.

To find,

• The time 3 boys will take to paint the same fence.

First, let's find how many times will 1 boy takes,

If,

4 boys can paint a fence in 5 hours,

1 boy can paint that fence in (4×5) hours =20 hours.

Now, let's find out the time 3 boys take,

If,

1 boy paint a fence in 20 hours,

3 boys will paint that fence in

$\frac{20}{3} hours \: \\ = 6 \frac{2}{3} hours$

Hope this helps you✌

Answer 2

Answer:

6

3

2

hours

Explanation:

Given,

4 boys can paint a fence in 5 hours.

To find,

The time 3 boys will take to paint the same fence.

First, let's find how many times will 1 boy takes,

If,

4 boys can paint a fence in 5 hours,

1 boy can paint that fence in (4×5) hours =20 hours.

Now, let's find out the time 3 boys take,

If,

1 boy paint a fence in 20 hours,

3 boys will paint that fence in

\begin{gathered} \frac{20}{3} hours \: \\ = 6 \frac{2}{3} hours\end{gathered}

3

20

hours

=6

3

2

hours

Hope this helps you✌