Question

if 1a 2b 5 is divisible by 9 then find we the least value of a+b​

Answer 1

Answer:

1

Step-by-step explanation:

1+a+b+2+5 sum must be divisible by 9

1+2+5 is 8

so a+b=1

Answer 2

Answer:

1

Step-by-step explanation:

• For a number to be divisible by 9,the sum of it's digits must be divisible by 9.

So,

=> 1 + a + 2 + b + 5

=> 8 + a + b

• The closest number to 8 divisible by 9 is 9.

• Now,we have to subtract the sum from the closest number to the sum divisible by 9.

So,9 - 8 = 1

Thus,the least value of a+b is 1.

HENCE,VERIFIED✔✔