Question: If a bunny comes out of its burrow 3 times per minute, calculate the combined number of times 20 bunnies at the same pace will have come out of their burrows in 10 hours.
Can you solve this problem?
Answer: 
If a bunny comes out of its hole three times in a minute, in an hour, with 60 minutes, the bunny will come out of the hole 60*3=180 times.
In 10 hours, a bunny will come out of their hole 180*10=1800 times.
The combined time that 20 bunnies coming out of their holes will have taken in 10 hours is 1800*20=36000 times.