Question

14. Without doing actual calculations, find the remainder if the following numbers are divided by 3
(i) 63820
(ii) 43821
(iii) 39503​

Answer 1

Answer:

The divisibilty rule is that sum of digirs should be divisible by 3.

Step-by-step explanation:

eg. 63820 = 6+3+8+2+0 =19 ( not divisible by 3 )

So 63820 is not divisible by 3.

Please mark as brainliest answer.

Answer 2

Answer:

A no is divisible by three if their sum is divisible by three,

i) 63820= 6+3+8+2+0

             = 19.

closest divisible no to 19 is 18 =19-18

                                                 =1. => remainder.

ii) 43821= 4+3+8+2+1

             = 18 =9, which is divisible

closest no to 9 is 9  = 9-9 = 0 => remainder.

iii) 39503= 3+9+5+0+3

               = 20

closest no to 20 is 18 = 20- 18 =2 => remainder.