Question

Rounding off a number to its nearest ones place gives 7. Which of the following numbers can the unknown number?

• A. 6.49
• B. 7.61
• C. 7.39
• D. 8.09

Answer 1

The correct option is C 7.39

If the digit on the right is more than $5$, then the decimal is rounded up.

And, if the digit on the right is less than $5$, the decimal is rounded down.

Following this, round off the decimals as:

Rounding off $7.39$ to its nearest ones place only gives us $7$.

So, the unknown number is $7.39$