Question
If the number 6484a6 is divisible by 8, then find the least value of a.
This question was previously asked in
RRB NTPC 2024 Undergraduate CBT 1 Question Paper (29-Aug-2025) (Shift 1)
The correct answer is
1
The correct answer is Option 1 i.e. 1.
Divisibility rule of 8: A number is divisible by 8 if the number formed by its last three digits is divisible by 8
6484a6
last 3 digits = 4a6
To make 4a6 divisible by 8 the value of a = 1, 5 and 9
Least value of a = 1
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