This is the second quiz in our Difficult group of quizzes on Solving Problems. If you have played the previous ones then you should be quite good at these sorts of questions by now. Every question is different, and you will have to work out which operators you need to use, and in which order.
For example, if it takes 2 men 12 hours to dig a hole, how long will it take 3 men to do the same job?
First we need to multiply: if it takes 2 men 12 hours to dig a hole then it would take one man 24 hours because 12 x 2 = 24.
Next we must divide: if it takes one man 24 hours to dig a hole, then 3 men could do it in 8 hours because 24 ÷ 3 = 8.
These questions aren’t so hard, once you know how to do them. Play all these quizzes until you can get every answer right first time. Then you’ll be a master of problem solving!