Question

Thrice a number when increased by 6 gives 24. The number is

(a) 6
(b) 7
(c) 8
(d) 11

Answer 1

$\begin{array}{l}\left(\text{a}\right)6\\ \text{Let the whole number be}x.\\ \text{Then,}3x+6=24\\ \Rightarrow 3x=24-6\\ \Rightarrow 3x=18\\ \Rightarrow x=\frac{\sout{1}{\sout{8}}^6}{{\sout{3}}_1}\\ \Rightarrow x=6\end{array}$