Dear All,
How to solve simply & model drawing for below problem:
At the first stop along a train route, some passengers boarded an empty train.
At the second stop, 3/10th of the passengers alighted and 84 passengers boarded the train.
At the third stop, 2/7 th of the passengers alighted and 68 passengers boarded the train.
Train had 428 passengers at the end. HOw many passengers boarded the train at the first stop?
Source: Lianhua Primary