[問題] Form24 Sec3-Q14

[sam6521]

There are 125 chips on a table. If as many of the chips as possible are to be arranged into an equal number of 3-chip and 4-chip stacks and the remaining chips are to be removed, how many of the chips are to be removed?

(A)One
(B)Two
(C)Five
(D)Six
(E)Seven

Ans:D

請問為什麼?
謝謝解答.

[kwtluck]

題目說有125個chips要分成每3個一堆,每4個一堆
又說"堆數要相同", 所以3x+4x=125, x=17......6