Question

In the decimal, $2.4d7$, $d$ represents a digit from 0 to 9. If the value of the decimal rounded to the nearest tenth, is less than $2.5$, what are the possible values of $d$?

• A. $0,1,2$
• B. $0,1,2,3,4$
• C. $5,6,7$
• D. $5,6,7,8,9$

Answer 1

The correct option is B $0,1,2,3,4$

The correct answer is $\{0,1,2,3,4\}$.

: If $d\ge 5$, the decimal rounded to the nearest tenth will be greater than $2.5$.

Hence, option B is correct.