Question

if the number 23583ab is completely divisible by 80 then the value of a-b​

Answer 1

Answer:

answer may be 0

Step-by-step explanation:

because if the number is completely divisible by 80 then the remainder is 0 so

a-b may also be 0

I gona doubt this ans

Answer 2

The value of a-b is 2.

Step-by-step explanation:

Consider the provided information.

A number is divisible by a number, is it always divisible by factors of that number.

Since 10 is a factor of 80, 23583ab is divisible by 10. It means last digit, should be 0.

Rewriting 23583ab as 23583a0. Since 8 is a factor of 80, 23583a0 is divisible by 8. It means last three digits 3a0 is divisible by 8.

There are 2 choices for a, either we can choose 0 or 2

Hence, the value of a can be 0 or 2  .

if x=0, number is 2358300. Which is not divisible by 80 .

if x=2, number is 2358320. Which is divisible by 80 .

Therefore, the number is 2358320 with a=2 and y=0.

a-b = 2-0 = 2

The value of a-b is 2.

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