Question

The ratio of black marker in a box to blue markers in a box is 3:5. If there are 10 more blue markers than black markers,how many total markers are in the box.

Answer 1

`Total = 40`

Explanation:

Given

`Black:Blue = 3:5`

`Blue = 10 + Black`

Required

Determine the total number of markers

First, we need to determine the ratio of black to blue such that

`Blue = 10 + Black`

`Black:Blue = 3:5`

Multiply the ratio by 5

`Black:Blue = 3 * 5 : 5 * 5`

`Black:Blue = 15 : 25`

By direct comparison:

`Black = 15`

`Blue = 25`

The above shows that:

`Blue = Black + 10`

So:

`Total = Black + Blue`

`Total = 25 + 15`

`Total = 40`