Adding numbers in the given order: 4,00,000 + 2,000 + 50 + 8 = 4,02,058

Explanation:
To solve this problem, we need to add the given numbers in the correct order.

Step 1: Add 4,00,000 and 2,000
4,00,000 + 2,000 = 4,02,000

Step 2: Add 4,02,000 and 50
4,02,000 + 50 = 4,02,050

Step 3: Add 4,02,050 and 8
4,02,050 + 8 = 4,02,058

Therefore, the correct answer is option 'C' - 4,02,058.

Explanation in detail:
Let's break down the addition step by step to have a clear understanding.

Adding 4,00,000 and 2,000:
- Start with the rightmost column, which is the ones column.
- Add the numbers in the ones column: 0 + 0 = 0.
- Move to the next column, which is the tens column.
- Add the numbers in the tens column: 0 + 0 = 0.
- Move to the next column, which is the hundreds column.
- Add the numbers in the hundreds column: 0 + 0 = 0.
- Move to the next column, which is the thousands column.
- Add the numbers in the thousands column: 4 + 2 = 6.
- Move to the next column, which is the ten thousands column.
- Since there is no number in the ten thousands column for 2,000, we can consider it as 0.
- Move to the next column, which is the lakhs column.
- Add the numbers in the lakhs column: 0 + 0 = 0.
- Therefore, the sum of 4,00,000 and 2,000 is 4,02,000.

Adding 4,02,000 and 50:
- Start with the rightmost column, which is the ones column.
- Add the numbers in the ones column: 0 + 0 = 0.
- Move to the next column, which is the tens column.
- Add the numbers in the tens column: 0 + 5 = 5.
- Move to the next column, which is the hundreds column.
- Add the numbers in the hundreds column: 2 + 0 = 2.
- Move to the next column, which is the thousands column.
- Add the numbers in the thousands column: 0 + 0 = 0.
- Move to the next column, which is the ten thousands column.
- Add the numbers in the ten thousands column: 0 + 0 = 0.
- Move to the next column, which is the lakhs column.
- Add the numbers in the lakhs column: 4 + 4 = 8.
- Therefore, the sum of 4,02,000 and 50 is 4,02,050.

Adding 4,02,050 and 8:
- Start with the rightmost column, which is the ones column.
- Add the numbers in the ones column: 0 + 8 = 8.
- Move to the next column, which is the tens column