Question

a bag contains 30 red, 40 blue, and 50 white button at random, find the probability that it is red or blue

Answer 1

`\large\boxed{70/120\,\,(7/12\,\,\text{when simplified)}}`

Explanation:

In this question, you're trying to find the probability of choosing a button that's either red or blue.

We know that there are:

• There are 30 red buttons
• 40 blue buttons
• 50 white buttons

With the information above, we can find the probability.

We know that there is a total of 120 buttons.

We're trying to find the probability of choosing a red or blue marble, so we would add the amount of blue and red marbles together to get the probability.

`30+40=70`

We would represent the probability as a fraction.

The probability would be:

`70/120`

The probability of picking a red or blue marble is 70/120.

When you simplify the fraction by 10, it would be 7/12.

I hope this helped you out.

Good luck on your academics.

Have a fantastic day!