Question

a bag contains 120 some are red and the rest are black. There are 19 marbles for every black marble how many red marbles are in the bag?

Answer 1

The number of red marbles in the bag are 114.

Explanation:

Given:

Total marbles in the bag is 120. There are 19 marbles for every black marble.

Now, to get how many red marbles in the bag.

Let the black marbles be
`x`.

And the red marbles be
`19x`.

According to question:

`x+19x=120`

`20x=120`

Dividing both sides by 20 we get:

`(20x)/(20)=(120)/(20)`

`x=6`

Black marbles = 6

So, the red marbles = 19×6 = 114.

Therefore, the number of red marbles in the bag are 114.