Which of the following times is within 10% of 4.63minutes?

Question

Which of the following times is within 10% of 4.63minutes? There may be more than one correct answer.

a.) 4.13 minutes

b.) 5.28 minutes

c.) 4.23 minutes

d.) 5.02 minutes

Answer 1

4.63 min less 10% = 0.90 x 4.63 min = 4.17 min

4.63 min plus 10% = 1.10 x 4.63 min = 5.09 min

So, c and d would be within +/- 10% of 4.63 min.