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(36^3 + 36)/36 =
[#permalink]
02 Jul 2022, 07:05
02 Jul 2022, 07:05
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Question Stats:
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Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: (36^3 + 36)/36 =
[#permalink]
02 Jul 2022, 07:25
02 Jul 2022, 07:25
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Carcass wrote:
\(\frac{(36^3 + 36)}{36} =\)
A) 216
B) 1216
C) 1297
D) 1333
E) 1512
A) 216
B) 1216
C) 1297
D) 1333
E) 1512
No calculator necessary.
Useful property: \(\frac{a+b}{c} = \frac{a}{c} + \frac{b}{c}\)
So, \(\frac{36^3 + 36}{36} = \frac{36^3}{36} + \frac{36}{36} \)
\(= 36^2 + 1 \)
= some number ending in 6 + 1
= some number ending in 7
Answer: C (since it's the only answer that has 7 as its units digit)
Cheers,
Brent
gmatclubot
Re: (36^3 + 36)/36 = [#permalink]
02 Jul 2022, 07:25
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