Question
Some pupils board a school bus.
At Bus Stop A, 57 of them alight
and 2 pupils board.
At Bus Stop B, 15 of the pupils alight
and 5 board.
If there are 13 pupils on the bus now,
how many pupils are on the bus at first?
3 m

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Some pupils board a school bus.
At Bus Stop A, 57 of them alight
and 2 pupils board.
At Bus Stop B, 15 of the pupils alight
and 5 board.
If there are 13 pupils on the bus now,
how many pupils are on the bus at first?