Question

$A,B$ and $C$ together earn Rs. $300$ per day, while $A$ and $C$ together earn Rs. $188$ and $B$ and $C$ together earn Rs. $152.$ The daily earning of $C$ is:

• A. Rs. $40$
  
• B. Rs. $30$
• C. Rs. $50$
• D. Rs. $60$

Answer 1

The correct option is A Rs. $40$

We are given $A+B+C=300$ .....(i),

$A+C=188$

$\Rightarrow A=188-C$ .....(ii)

and $B+C=152$

$\Rightarrow B=152-C$ .....(iii)

Putting values of equation (ii) and (iii) in equation (i)

Therefore, $188-C+152-C+C=300$

$\Rightarrow 340-C=300$

$\Rightarrow C=40$

So, option A is correct.