Number System
Aptitude

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Q.

Which digits should come in place of @ and # if the number 62684@# is divisible by both 8 and 5?

 A.

4, 0

 B.

0, 4

 C.

4, 4

 D.

1, 1

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Solution:
Option(A) is correct

Since the given number is divisible by 5, so 0 or 5 must come in place of #.

But, a number ending with 5 is never divisible by 8.

So, 0 will replace #.

Now, the number formed by the last three digits is 4@0, which becomes divisible by 8, if @ is replaced by 4.

Hence, digits in place of @ and # are 4 and 0 respectively.

Edit: Thank you akanksha and pratik, based on your inputs Option 4 has been changed from '0, 0' to '1, 1' now.


(8) Comment(s)


Deepak
 ()

Thank you, Pratik for letting me know the issue. Modified the value of option D.



Akanksha Singh
 ()

option d is also corect


Deepak
 ()

Thank you Akanksha for letting me know the issue. Modified the value of option D.


Pratik
 ()

option d is also correct



Sumit Gupta
 ()

hey 440 and 400 are both divisible by 8

then what can be the answer.............

answer should be a) and d).

62684@#

So, in place of # it should be either 0 or 5, but here 5 is not here.

So,fine # should be 0 here.

for divisible by 8,last three digits of the required number should be completely divisible by 8.

ie 4@0

in place of @, it should be 0 and 4 both.

Because 400 and 440 both should be divisible by 8.

So,answer is a) and d).



Gannu
 ()

hey 440 and 400 are both divisible by 8

then what can be the answer.............

@abhay



Abhay
 ()

Hello,

I think the right answer is option d. 440 is not divisible by 8.


Shobia
 ()

how can u say like this 440 is divisible by 8, 440/8 is 55, both a and d is right