Expansion and Reading of a Number

Q.

In $7,83,851$, how many times the $8$ on the left is greater than the $8$ on the right ?

Q.

The numeral for ninety million ninety thousand ninety is

(a) 9090095

(b) 90090090

(c) 909090

(d)None of these

1. $9090095$

2. $90090090$

3. $909090$

4. None of these

Q.

Write the following number in expanded form :

$631453$

Q. Write the expanded form of 4856.

1. $4\times 1000+8\times 100+5\times 10+6\times 1$
2. $4\times 100+8\times 100+5\times 10+6\times 1$
3. $8\times 1000+4\times 100+5\times 10+6$
4. None of the above