Running for 2 hours, Jonah burnt 30 calories every hour. How many more calories would he have lost if he would have run for five hours?
When Jonah ran for 2 hours, burning 30 calories every hour, he burnt a total of 2*30=
<gadget id="calculator">2*30</gadget>
<output>60</output>
60 calories.
If he had run for five hours, losing 30 calories every hour, Jonah would have burnt 5*30=
<gadget id="calculator">5*30</gadget>
<output>150</output>
150 calories.
The difference in the number of calories Jonah would have burnt if he ran for five hours instead of 2 hours is 150-60=
<gadget id="calculator">150-60</gadget>
<output>90</output>
90 calories.

<result>90</result>