Question

EXERCISE 3.1
1. Check the divisibility of the following numbers by 3 and 9
(a) 723
(b) 9,604
(0) 8.325
d) 201,364​

Answer 1

The divisibility rule for 3 is as same to the divisibility of 9. So

(a) 723 = 7+2+3=12 .12 is divisible by 3 but not by 9.

(b) 9,604= 9+6+0+4=19 .19 is a prime number.So,it is not divisible by both.

(c) 8,325= 8+3+2+5=18. 18 is divisible by both

(d) 2,01,364= 2+0+1+3+6+4=16. 16 is not divisible by both.

Step-by-step explanation:

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Answer 2

Answer:

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