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goodyear2013
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If the three-digit number 5W2 is evenly divisible by 8, 05 Feb 2014, 07:53
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Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!

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72% (01:28) correct 28% (01:19) wrong based on 370 sessions

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If the three-digit number 5W2 is evenly divisible by 8, which of the following could be the digit W ?

A. 2
B. 3
C. 4
D. 5
E. 6

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Any number evenly divisible by 8 must also be evenly divisible by 4. An integer is divisible by 4 if and only if its last two digits are a multiple of 4. 22, 42, and 62 are not divisible by 4. This leaves only Choices (B) and (D), so try dividing 532 by 8: 532 + 8 does not divide evenly, so the answer must be (D), 552

Hi, I want to know whether we can solve this without plugging the number in W, please.
I plugged in different numbers before I found the right answer...
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Bunuel
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If the three-digit number 5W2 is evenly divisible by 8, 05 Feb 2014, 07:57
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goodyear2013
If the three-digit number 5W2 is evenly divisible by 8, which of the following could be the digit W ?

A. 2
B. 3
C. 4
D. 5
E. 6

OE
Any number evenly divisible by 8 must also be evenly divisible by 4. An integer is divisible by 4 if and only if its last two digits are a multiple of 4. 22, 42, and 62 are not divisible by 4. This leaves only Choices (B) and (D), so try dividing 532 by 8: 532 + 8 does not divide evenly, so the answer must be (D), 552.

Hi, I want to know whether we can solve this without plugging the number in W, please.
I plugged in different numbers before I found the right answer...
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I'd solve this question the same way as in OE. Think it the easiest solution.
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If the three-digit number 5W2 is evenly divisible by 8, 06 Feb 2014, 03:21
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Took me 35 sec. to solve this question:

400 (divisible by 8) --> 480 --> 560 --> 552 (!)
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If the three-digit number 5W2 is evenly divisible by 8, 18 Feb 2014, 21:58
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If the three-digit number 5W2 is evenly divisible by 8, which of the following could be the digit W ?

A. 2
B. 3
C. 4
D. 5
E. 6


Given that, the three digit number 5W2 is divisible by 8, then using the divisibility rule, that is 8 is divisible by the number if sum of four times the hundreds digit, twice the tens digit and units digit of the number is divisible by 8.
Or, 4 * 5 + 2 * W + 1 * 2 = 22 + 2W is divisible by 8
Or, W can be 1, 5, 9......

Hence, answer is (D).
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If the three-digit number 5W2 is evenly divisible by 8, 20 Feb 2014, 15:16
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D. 5

What is easy number divisible by 8 and close to the 500's? 8*60 = 480.

From here I can add 32, 72 or 112 ( 8*4 or 8*9 or 8*14) to get 512, 552, or 592

552 is only choice allowed.
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If the three-digit number 5W2 is evenly divisible by 8, 09 Mar 2014, 23:58
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Tried to locate a '0' ending multiple of 8 between 500 & 599

Only 560 is present

560 is divisible by 8, so (560 - 8) is also divisible by 8

Answer = 5 = D
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If the three-digit number 5W2 is evenly divisible by 8, 11 Mar 2014, 08:23
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"If the last three digits of a number are divisible by 8, then so is the whole number. "

Y above proprty cant be apply to this question..

i just plug differnt choices and got the ans in 1 mint..
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If the three-digit number 5W2 is evenly divisible by 8, 01 Dec 2024, 11:10
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