exam Maths Puzzle Numerical Ability

It takes Gary 1 hour to milk all the cows, and it takes Dana 1.5 hours. How long will it take them to do the job together? Please explain all the steps and models/equations used. Thanks so much.

Read Solution (Total 0)

exam Other Question

Hi, can you help me?
.
Linear regression
.
Here is the problem
.
....Year.......!....Number of triplets
.
....1990 (0).!....2830
....1995 (5).!....4551
...2000 (10)!....6 a cashier has a total of 125 bills made up of fives and tens. The total value of the money is $815. How many ten-dollar bills does the cashier have?