The number 31,239 is divisible by 3 as the sum of its digits is divisible
by 3. Since the sum is also divisible by 9, it is also divisible by 9. If the
digits 2 and 9 are interchanged in
31,239, the number is divisible by
(a) 3 but not 9
(b) 9 but not 3
(c) Both 3 and 9
(d) Neither 3 nor 9
Answers
Answered by
1
Answer:
Yes, 31239 is divisible by 3. It will leave no comma spot.Divisibilty rule for 3 is: Sum all the digits. If the result is divisible by three, then the original number is divisible by 3.
Answered by
0
Answer:
The answer is (c)
Step-by-step explanation:
Even if we interchange the digits in any manner but the sum will be the same right. So, (c) is answer
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