Can you solve this maths question meant for seven-year-olds?
https://twitter.com/LouiseBloxham/status/729027334284709893
The question reads: There are some people on a train.
19 people get off the train at the first stop.
17 people get on the train.
Now there are 63 people on the train.
How many people were on the train to begin with?
source: www.techworm.net
