Question

A person can burn 120 calories in 15 minutes of running. Calculate how many

calories the person will burn in 1,5 hours.
Question 5.2 [2 marks]

Answer 1

1.5 hour would be the same as 90 minutes so the amount of calories a person would burn in 90 minutes considering they loose 120 calories in 15 for 90 would be 720 calories

Answer 2

A person can burn 120 calories in 15 minutes of running. Calculate how many calories the person will burn in 1.5 hours.

SOLUTION

So, if in 15 minutes, a person can burn 120 calories. In 1 minute, a person can burn 8 calories.

120 ÷ 15

8

15 | 120

120

0

8 CALORIES.

NOW, how many calories a person burn in 1.5 hours?

FORMULA (HOURS TO MINUTES)

60 × 1.5

60

X 1.5

300

60

90.0

90 MINUTES

15 minutes x 8 calories = 120 calories (GIVEN)

90 minutes × 8 calories

90

x 8

720

ANSWER

= A person can burn 720 calories in 1.5 hours.