Seudónimo Seudónimo

21-11-2016
Mathematics

contestada

An “A” train leaves a subway station every 12 minutes. An “E” train leaves every 9 minutes. If both trains just left the station on parallel tracks, when will both leave the station together again?

A. in 108 minutes

B. in 36 minutes

C. in 72 minutes

D. in 24 minutes

Respuesta :

brooklynhinson58 brooklynhinson58

21-09-2020

B. In 36 minutes because 12×3=36 and 9×4=36 and this is the first number they share.

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