Question

Antonio burns 75 calories for every

15 minutes he rides his bicycle. At that
rate, how many calories will Antonio burn if
he rides his bicycle for 60 minutes?

Answer 1

300 calories are burned for 60 minutes

Solution:

Given that, Antonio burns 75 calories for every 15 minutes he rides his bicycle

To find: calories burned if he rides his bicycle for 60 minutes

From given information,

For every 15 minutes, 75 calories is burned

Therefore, for 1 minute,

`1 \text{ minute } = (75)/(15) = 5 \text{ calories }`

So in 1 minute, 5 calories are burned

We have to find the calories burned for 60 minutes

Let "x" be the calories burned for 60 minutes

1 minute = 5 calories

60 minutes = x calories

This forms a proportion and we can solve the sum by cross multiplying

`x * 1 = 5 * 60\\\\x = 300`

Thus 300 calories are burned for 60 minutes