The number 28,549 when rounded off to the nearest hundreds is

1. 28,000

2. 28,500

3. 28,600

4. 29,000

The smallest natural number which when rounded off to the nearest hundreds as 500 is

1. 499

2. 501

3. 450

4. 549

The greatest 5-digit number formed by the digits 3, 0, 7 is

1. 33077

2. 77730

3. 77330

4. none of these

In the International place value system, we write 1 billion for

1. 10 lakh

2. 1 crore

3. 10 crore

4. 100 crore