Question

Mr Anson made a walkway using 4times as many red bricks as grey bricks. He used a total of 80 bricks. How many red bricks did Mr Anson use?

Answer 1

Answer: There are 64 red bricks to made a walkway.

Explanation:

Since we have given that

Total number of bricks = 80

Let the number of grey bricks be x

Let the number of red bricks be 4x

According to question,

`x+4x=80\\\\5x=80\\\\x=(80)/(5)\\\\x=16`

So, red bricks is given by

`4* x=4* 16=64`

So, there are 64 red bricks to made a walkway.