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N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's

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N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's  [#permalink]

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New post 25 Jul 2018, 11:06
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N is a 3 digit positive integer. Is N greater than 350?

(1) Hundred's place digit of N is three times its unit's place digit, and is half of its ten's place digit.

(2) [N/10] = 36, where [x] represents the greatest integer less than or equal to x.
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Re: N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's  [#permalink]

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New post 25 Jul 2018, 13:26
amanvermagmat wrote:
N is a 3 digit positive integer. Is N greater than 350?

(1) Hundred's place digit of N is three times its unit's place digit, and is half of its ten's place digit.

(2) [N/10] = 36, where [x] represents the greatest integer less than or equal to x.



(1) Hundred's place digit of N is three times its unit's place digit, and is half of its ten's place digit.

N =100a+10b+c
also,
a=3c and
b=2a

the smallest possible value of c =1
so N = 361

sufficient.

(2) [N/10] = 36, where [x] represents the greatest integer less than or equal to x.
again N >= 360

sufficient

D
Re: N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's &nbs [#permalink] 25 Jul 2018, 13:26
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N is a 3 digit positive integer. Is N greater than 350? (1) Hundred's

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