Express the following numbers in standard form:
(i) 5,00,00,000
(ii) 70,00,000
(iii) 3,18,65,00,000
(iv) 3,90,878
(v) 39087.8
(vi) 3908.78

Explanation

To express the given numbers in standard form, we need to write them in the format \( a \times 10^n \), where \( 1 \leq a < 10 \) and \( n \) is an integer.

Let's solve each part step by step:

### (i) 5,00,00,000
1. Identify the significant digits: The number is 50000000.
2. Move the decimal point to create a number between 1 and 10: 5.0.
3. Count how many places you moved the decimal point: It moved 7 places to the left.
...