Question

Test the divisibility of the following numbers by 7 :- i) How we can know that 826 is divisible by 7?

Answer 1

Answer:

it is divisible by 7.

Step-by-step explanation:

To check if a number is divisible by 7. Take the last digit of the number, double it Then subtract the result from the rest of the number If the resulting number is divisible by 7 then the original number is also divisible by 7

for 826

last digit is 6 so,

6+6=12

remaining number is 82.

divisibility rule of 7 : 82–12=70.

70 is divisible by 7 so 826 is also divisible by 7.

Hope this helps you.