All u have to do is divide those numbers and see what they have in common.
Step-by-step explanation:
To find a mean proportional. There are various uses of the square root, one of which is to find a mean proportional between any two numbers, which is performed thus: Multiply the two given numbers together, then extract the square root out of their product, and it will be the mean proportional sought.
One hour. If they both work together, Fred is automatically gonna be almost done in 40 minutes but Vanessa is holding him back. So it then gets exchanged to 60 minutes.