Rizwana Shaik
Rizwana Shaik voted up Oddman's answer
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
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
Rizwana Shaik voted up Oddman's answer
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
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