Question

if the digits 4 and 7 in 279049015 interchange their place write thenumber name of the new number so formed​

Answer 1

Answer:

the digits 4 and 7 in 279049015 interchange their place write thenumber name of the new number so formed.

Answer 2

Answer:

249079015. Step-by-step explanation: twenty four crores ninty lakh seventy nine thousand fifteen

Step-by-step explanation:

Correct option is

11

Let the given number be (10x+y) where the ten's digit is x and one(unit)'s digit is y.

Now, the number obtained by interchanging the digits=(10y+x)

∴ On adding these no.'s =(10x+y)+(10y+x)

=11(x+y)

where 11(x+y) is clearly divisible by 11

Answer :11.