Question

Test the following numbers for divisibility of 11: 327821 523067 900432 689513

Answer 1

Answer:

(1) 327821

3+7+2 = 11

2+8+1 = 11

11-11 = 0 divisible by 11 so the number 327821 is divisible by 11

(2) 523067

5+3+6 =14

2 + 0 + 7 = 9

14 - 9 = 5 not div by 11. So the number 523067 is not divisible by 11

(3) 900432

9+0+3 = 12

0 +4 + 2 = 6

12 - 6 = 6 not divisible by 6. So the number 900432 is not divisible by 11

(4) 689513

6+9+1 = 16

8+5+3 = 16

16 - 16 = 0 divisible by 11 so the number 689513 is divisible by 11

Step-by-step explanation: