In Gym class, Jane did 24 jumping jacks in 30 seconds.

Question

In Gym class, Jane did 24 jumping jacks in 30 seconds. At this rate, how many jumping jacks will she do in 50 seconds?

Answer 1

For this problem, we need to find the rate at which Jane does jumping jacks.

24 jumping jacks in 30 seconds would be 24/30 which gives us 0.8. This means Jane does 0.8 jumping jacks(jj) per second(sec).

Now we multiply her rate of 0.8jj/sec by 50 seconds:

0.8 x 50 = 40

As we can see, Jane would do 40 jumping jacks in 50 seconds.