Question

If 1/2+2/5s=s-3/4,what is the value of s?

Answer 1

Answer:

b

Step-by-step explanation:

Answer 2

Answer:  The correct option is

(B) $s=\dfrac{25}{12}.$

Step-by-step explanation:  We are given to find the value of s from the following equation :

$\dfrac{1}{2}+\dfrac{2}{5}s=s-\dfrac{3}{4}~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To find the value of s, we must solve the given equation.

The solution of equation (i) is as follows :

$\dfrac{1}{2}+\dfrac{2}{5}s=s-\dfrac{3}{4}\\\\\\\Rightarrow s-\dfrac{2}{5}s=\dfrac{1}{2}+\dfrac{3}{4}\\\\\\\Rightarrow \dfrac{5-2}{5}s=\dfrac{2+3}{4}\\\\\\\Rightarrow \dfrac{3}{5}s=\dfrac{5}{4}\\\\\\\Rightarrow s=\dfrac{25}{12}.$

Thus, the required value of s is $\dfrac{25}{12}.$

Option (B) is CORRECT.