Latest Elitmus Aptitude Question SOLUTION: there r 6 digits 1,2,3,4,5,6, a 5 digit number is to formed frm these digits which is divisible by 4

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(#M40038366) ELITMUS Numerical Ability question ns Keep an EYE

there r 6 digits 1,2,3,4,5,6, a 5 digit number is to formed frm these digits which is divisible by 4

Asked In Elitmus aquib aslam (9 years ago)

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Read Solution (6) :

keshav  (9 years ago)

12,16,24,32,36,52,56,64 these 8 combination comes in place of
last 2 digits...
so
4*3*2*8=192

Is this solution Helpfull? Yes (26) | No (2)  

subhash kumar  (9 years ago)

As we know that If last two digit of any no. is divisible by 4 then that number would be div. by 4.

if repetition are not allowed.......
5 digits numbers are
i.)if last digits no. is 2 --------- 1 way
2nd last digits would be 1,3 and 5 ---------- 3 ways
first digit will be 4 out of 1 ----------4 ways
second digit will be 3 out of 1 ----------3 ways
third digit will be 2 out of 1 ----------2 ways
now, 4*3*2*3*1 = 72
now similarly we will put last digit 4.
then no. of way will be 48.
again last digit 'll be 6 then the no. of way 'd be 72.

Hence, the total no of way is 72+48+72 = 192

Is this solution Helpfull? Yes (9) | No (1)  

Vikash priyadarshi  (9 years ago)

ans :- 192

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Pratap Poudel  (9 years ago)

how? please explain it

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MOHIT VERMA  (9 years ago)

plz give the option

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shabana ismail  (9 years ago)

12 16 24 36 48 52 56 64 total 8 combinations possible,which is divisible by 4(lkast 2 digits shud be divsble by four).there are five digits the first three digits can be filled in 3! ways, ie 3*2*1 and the remaining two digits in 8 combinations. ie, 3!*8= 48

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