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What is the hundreds digit of a three digit number N

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What is the hundreds digit of a three digit number N  [#permalink]

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New post Updated on: 14 Jul 2018, 02:00
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What is the hundreds digit of a three digit number N ?

(1) N is multiple of 20

(2) The hundreds digit of N is 6 more than the units digit

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Originally posted by push12345 on 14 Jul 2018, 00:58.
Last edited by Bunuel on 14 Jul 2018, 02:00, edited 1 time in total.
Renamed the topic and edited the question.
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Re: What is the hundreds digit of a three digit number N  [#permalink]

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New post 14 Jul 2018, 01:22
push12345 wrote:
What is the hundreds digit of a three digit number N

1) N is multiple of 20

2)The hundreds digit of N is 6 more than the units digit



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let the number be abc

1) N is multiple of 20
there are so many three-digit multiples of 20
insuff

2)The hundreds digit of N is 6 more than the units digit
if number is 721, hundreds digit is 7
but if number is 872, or it can be 600
insuff

combined
we know it is multiple of 20, so units digit is 0
but hundreds digit is 6 more , so 0+6=6
suff

C
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Re: What is the hundreds digit of a three digit number N  [#permalink]

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New post 08 Apr 2019, 00:26
push12345 wrote:
What is the hundreds digit of a three digit number N ?

(1) N is multiple of 20

(2) The hundreds digit of N is 6 more than the units digit


N= 100a + 10b+ c
so
#1
N multiple of 20 ; tens place is always 2,4,6,8,0 and units 0 always
hundreds can be 1,2,3,..9
notsufficient
#2
The hundreds digit of N is 6 more than the units digit
it can be any value again insufficient
from 1& 2
we know multiple of 20 units is always 0 so hundereds is 0+6 ; 6
IMO C
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Re: What is the hundreds digit of a three digit number N   [#permalink] 08 Apr 2019, 00:26
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