Question

5 less than thrice a number and add 7. The result is 14. The number is ______.

• A. $5$
• B. $4$
• C. $6$
• D. $2$

Answer 1

Answer: (B)

$4$

Let the required number be $x$.

$\Rightarrow$ According to the given question,

$\Rightarrow$ $(3x-5)+7=15$

$\Rightarrow$ $3x+2=14$

$\Rightarrow$ $3x=14-2$

$\Rightarrow$ $3x=12$

$\Rightarrow$ $x=\frac{12}{3}=4$

$\therefore$ The required number be $4$