Tick ()to the correct answer1. \begin { equation } \frac{n}{2}+\frac{

1.	Tick ()to the correct answer1. \begin { equation } \frac{n}{2}+\frac{n}{3}=7, \text { then } n \end { equation }(a) 5(b) 10(c) 82, x + 5x + 7 = 25, then x is :\begin { equation } \begin{array}{lll}{\text { (a) } \frac{19}{6}} & {\text { (b) }} & {\frac{-19}{6}}\end{array} \end { equation }(c) 13
Answer» 1) n/2 + n/3 = 7 Take LCM (3n + 2n)/6 = 7 5n = 42 n = 42/5 = 8.5 2) x + 5x + 7 = 25 6x = 25 - 7 6x = 18 x = 18/6 = 3

Tick ()to the correct answer1. \begin { equation } \frac{n}{2}+\frac{n}{3}=7, \text { then } n \end { equation }(a) 5(b) 10(c) 82, x + 5x + 7 = 25, then x is :\begin { equation } \begin{array}{lll}{\text { (a) } \frac{19}{6}} & {\text { (b) }} & {\frac{-19}{6}}\end{array} \end { equation }(c) 13

Answer»

1) n/2 + n/3 = 7 Take LCM (3n + 2n)/6 = 7 5n = 42 n = 42/5 = 8.5

2) x + 5x + 7 = 25 6x = 25 - 7 6x = 18 x = 18/6 = 3