The number of 5 digit numbers which are divisible by 4, with digits from the set and the repetition of digits is allowed, is _____ .
← JEE Advanced 2018 · Paper 1
MathematicsNumerical+3Question 44 of 54
JEE Advanced 2018 · Paper 1, Mathematics question 8
Answer and worked solution
Official answer: 625
A number is divisible by 4 when its last two digits are. Using the digits 1-5, the possible endings are
which is 5 choices.
The first three digits are free: ways.
Total: .
Answer: 625