Question

Q1 test the divisibility of the following number by 9.
a) 187245
b) 3478
c) 547218

Answer 1

If the sum of the digits of a no. is a factor or divisible by 9. Then the whole no is divisible by 9

A) 187245
1+8+7+2+4+5=27
27 is divisible by 9.
So the whole no. is disible by 9

B)3478
3+4+7+8=22
22 is not disible by 9
So the whole no is not divisble by 9

C) 547218
5+4+7+2+1+8=27
27 is divisible by 9.
So the whole no. is disible by 9

Answer 2

Heya mate your answer is here ✔✔✔

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a) 187245 is divisible by 9 because
1+8+7+2+4+5= 27
it is divisible by 3
so it will also divisible by 9.

b) 3478 is not divisible by 9 because
3+4+7+8=22
which is not divided by 3
so it will also not divided by 9

c) 547218 is divisible by 9
because
5+4+7+2+1+8=27
which is divisible by 3
so that will also divisible by 9
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HOPE IT WILL HELPS YOU MARK AS BRAINLIEST PLS ⭐ ⭐ ⭐ ✔