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

Answer:

The number of red marbles in the bag are 114.

Step-by-step 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:

$\frac{20x}{20}=\frac{120}{20}$

$x=6$

Black marbles = 6

So, the red marbles = 19×6 = 114.

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