Question

It takes 484848 minutes for 777 people to paint 777 walls. How many minutes does it take 202020 people to paint 202020 walls?

Answer 1

This is an interesting question!  It looks complicated, but it really not! To find the answer, you will need to set up the rate of 484848 mins to 777 people to 777 walls and create an equivalent rate of __________ minutes to 202020 people to 202020 minutes.  There are 260 groups of 777 in 202020 (202020/777=260), so you will need 260 groups of the 4848484 mins  which may be represented as 260 x 4848484 = 126060480 minutes.  You will need 126060480 minutes.

Answer 2

Answer:

Approximately 391 minutes taken by 20 people to paint 20 walls.                    

Step-by-step explanation:

Given : It takes 48 minutes for 7 people to paint 7 walls.

To find : How many minutes does it take 20 people to paint 20 walls?

Solution :

7 people to paint 7 walls in 48 minutes.

So, 1 people to paint 7 walls in $\frac{48}{7}$ minutes.

and 1 people to paint 1 walls in $\frac{48}{7\times 7}$ minutes.

Now, We have to find minutes does it take 20 people to paint 20 walls.

20 walls will be painted in $\frac{48\times 20}{7\times 7}$ minutes.

20 people to paint 20 walls in $\frac{48\times 20\times 20}{7\times 7}$ minutes.

i.e. $\frac{48\times 20\times 20}{7\times 7}=\frac{19200}{49}=391.83$

Therefore, Approximately 391 minutes taken by 20 people to paint 20 walls.