When positive integer y is divided by 51, the remainder is x. What is

Question

When positive integer y is divided by 51, the remainder is x. What is the remainder when y is divided by 17?

(1) When y is divided by 34 the remainder is zero.
(2) x = 17

GMATBusters · Accepted Answer

0 is a multiple of all numbers; 0 is a factor of no number.

Negative numbers are also multiples. For example, the set of all multiples of 5 is:

{..., -15, -10, -5, 0, 5, 10, 15, ...}

Multiple of X includes 0,x,2x...
Multiple does include zero.

ZERO is smallest non negative multiple of any integer

varundixitmro2512 · Answer

IMO D

if y is divisible by 34 the it is also divisible by 17 as 34 is multiple of 17

also y=51K+x, 51x is divisible by 17 and x is is 17

CV7585 · Answer

When positive integer y is divided by 51, the remainder is x. What is the remainder when y is divided by 17?

(1) When y is divided by 34 the remainder is zero.
(2) x = 17

Given - y is divided by 51, the remainder is x.

y = 51Q+x (Q is an integer) or y = 17 (3Q) + X. ; have to find out the remainder when y is divided by 17.

Statement 1:

y is a multiple of 34. Values that suit this are: 0, 34, 102 etc. All of these are divisible by 17 (as 34 = 17 x 2).

Hence sufficient as remainder for each of the values is 0.

Statement 2:

x = 17.

From the question stem we have y = 17 (3Q) + x. i.e. y = 17 (3Q) + 17.

This means that y = 17 (3Q+1). Always a multiple of 17.

Sufficient.

Answer D.

adkikani · Answer

Bunuel   PKN   gmatbusters   chetan2u   VeritasKarishma

I have a query regarding solution provided by  CV7585

Is not the smallest multiple of a number (ignoring negative integer values as appropriate to this Q) the number itself and not zero?

PKN · Answer

Hi  adkikani ,

MULTIPLE=ANY NUMBER*AN INTEGER(+/-/0)

Here, y is a multiple of 34 IMPLIES THAT
y=any number (34)* AN INTEGER(+/-/0)

Hope it helps.

You may raise further queries (if any)

Salsanousi · Answer

y/51 = q + x/51 rearranged y = 51q + x

1)
y/34 = b + 0/34 rearranged y = 34b + 0 if we let b = 0 then y = 0 and 0/34 remainder 0
If we let b= 1 then y = 34 and 34/34 = 1.0 remainder zero.

Now since 0,34,68 etc.. are multiples of 17 so the remainder will be zero.
Sufficient

2) x = 17

from question stem if we let q = 0 we get y= 17

17/17 = 1.0 remainder zero

If q = 1 then y = 68 and 68/17 = 4.0 remainder zero

Sufficient

Answer choice D.

Posted from my mobile device

Salsanousi · Answer

If you try 2*0 = 0 also 0/2 = 0 2*1 = 2 Etc.. Zero is a multiple of every number except itself. If you also take a look at this link it would help. https://gmatclub.com/forum/is-0-zero-to ... 04179.html Posted from my mobile device

merajul · Answer

When positive integer y is divided by 51, the remainder is x. What is the remainder when y is divided by 17?

(1) When y is divided by 34 the remainder is zero.
(2) x = 17

The question states, y = (51a + x), y=17b + ?
From (1), (51a+x) divided by 34 gives remainder 0. That means, 51a & x, both are multiple of 34.
34 = 17*2. Thus (51a+x) divided by 17 will give remainder 0
From (2), y= (51a+ 17) = (17*3a + 17) divided by 17 will give remainder 0.
Thus answer is D. Both should be sufficient.

bumpbot · Answer

Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.

When positive integer y is divided by 51, the remainder is x. What is

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards

GMAT Data Sufficiency (DS) Questions

When positive integer y is divided by 51, the remainder is x. What is

Prep Toolkit

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards