Mathematics, 07.07.2019 01:10, payshencec21

Atrain can hold 78 passengers. the train starts out empty and picks up one passenger at the first stop,2 passengers at the second stop,3 passengers at the third stop, and so forth. after how many stops will the train be full.

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Atrain can hold 78 passengers. the train starts out empty and picks up one passenger at the first st...