Form 8 digit numbers from by using 1, 2,3,4,5 with repetition is allowed and must be divisible by4? A.31250 b.97656 c.78125 d.97657

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Oddman Profile
Oddman answered
In order to be divisible by 4, the two least significant digits must be
  12, 24, 32, 44, 52    (a total of 5 choices)
The other 6 digits can be any of the five allowed digits.
The total number of possible numbers is
  (5^6)*(5) = 5^7 = 78125
Rizwana Shaik Profile
Rizwana Shaik answered

Form 8 digit numbers from by using 1, 2,3,4,5 with repetition is allowed and must be divisible by4?

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