## Mental Maths – Practice Test 3

There are currently only three teachers in the small school where you hope to work. The youngest has 8 years of experience while the oldest has 34 years. The third teacher has exactly half the experience of the other two teachers combined. What is the total number of years taught by all three teachers? 63. […]

## Mental Maths – Practice Test 2

A portable air compressor displays a warning label that says the unit will automatically cut off and must cool for 20 minutes after each 10 minutes of use. You estimate it will require 15 minutes of compressor use to properly inflate your flat tire. What is the least number of minutes required to inflate your […]

## Mental Maths – Practice Test 1

A parents’ evening was planned to start at 16:30. There were 20 consecutive appointments of 10 minutes each and a break of 15 minutes during the evening. At what time was the parents’ evening due to finish? Give your answer using the 24-hour clock. 20:05. An important principle of mental math is finding the easiest […]