Question

A marathon had 618 runners registered.

Of these runners, about 0.8% completed
the race in under 2 h 15 min.
a) How many runners completed the
race in this time?
b) Estimate to check your answer.

Answer 1

4

Explanation:

Hello!

To find 0.8% of 618, we can multiply 618 by the percentage's decimal form: 0.008 (divide the percentage by 100).

Evaluate:

• 0.8% of 618
• 0.008 * 618
• 4.944 ≈ 4

To estimate, we can try to find 0.8% of 620, as 618 is really close to 620.

0.8% of 620 is 4.96, which is really close to 4.944.

Therefore, we can verify that the 4 people finished in under 2 hours and 15 minutes.