22/Jan Math RECALL-Best gmat prep 2022(1)

WHAT IS RECALL?

RECALL is real exam questions according to latest examinee’s recall (REQALER).

PS

There are 4 piles of balls, each with m pieces. Put the balls in the first pile into the other piles, and the ratio is 1:6:4:5? (Anyway, it adds up to 16 copies)

Ask how to use m to represent the ball taken out from 1