CBSE Class 8 Answered
Separate the following numbers which are divisible by 3 but not 9:
702, 213, 294.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
First we find the sum of digits of given numbers,
Sum of digits of 702 = 7 + 0 + 2 = 9
Here, 9 is divisible by both 3 and 9.
Thus, 702 is divisible by both 3 and 9.
Sum of digits of 213 = 2 + 1 + 3 = 6
Here, 6 is divisible by 3 but not 9.
Thus, 213 is divisible by 3 but not 9.
Sum of digits of 294 = 2 + 9 + 4 = 15
Here, 15 is divisible by 3 but not 9.
Thus, 294 is divisible by 3 but not 9.
Answered by | 04 Jun, 2014, 03:23: PM
Concept Videos
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Divisibility Rules
Divisibility by 2, 3, 4, 6, 7, 8, 9, 10, 11, 12, 14 and 15
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