Problema Solution
Else's dad is a policeman. One afternoon her dad stopped 19 people for speeding. This was 12 more than the previous day and 7 more than each of the prior two days combined. How many people did Else's dad stop for speeding over those three days?
Answer provided by our tutors
The previous day the policeman stopped 19 - 12 = 5 people.
19 is also 7 more than each of the prior two days combined:
19 - 7 - 5 = 7 people stopped 2 days ago.
In total the policeman stopped 19 + 5 + 7 = 31 people.