A train travelled from Oxford to London. The only station it stopped at on

the way was Slough.
At Slough, 56 people got off the train and 134 people got on the train.
There were 318 people on the train when it arrived in London.
How many people were on the train as it left Oxford?

1 answer

To solve this problem, let's work backwards.

When the train arrived in London, there were 318 people on board. From the information given, we know that 56 people got off the train at Slough and 134 people got on.

So, before the train arrived in Slough, there were 318 - 56 = 262 people on board.
Before people got on at Slough, there were 262 - 134 = 128 people on board.

Therefore, there were 128 people on the train when it left Oxford.