Question

An urn contains seven red and 11 white balls. How many balls are there in total?

1) 18
2) 17
3) 16
4) 15

Answer 1

The total number of balls in the urn, combining both seven red and 11 white balls, is 18.

Step-by-step explanation:

The question is asking to calculate the total number of balls in an urn containing seven red and 11 white balls. To determine the total, we simply add the number of red balls to the number of white balls.

So, the calculation would be:

7 red balls + 11 white balls = 18 balls total.

Hence, the correct answer is option 1), which is 18 balls.