Question

If $a$ is greater than $b$ by $2$ and $b$ is greater than $c$ by $10$ and $a+b+c=130$, then $(b+c)-a=$ ?

• A. $34$
• B. $42$
• C. $38$
• D. $44$

Answer 1

The correct option is A $34$

According to the question $a=b+2$ and $b=c+10$
Therefore, $c=b-10$
Given, $a+b+c=130$ (Put the value of $a$ and $c$)
We get, $b+2+b+b-10=130$
next step : $3b=138$
By solving above equation we get $b=46$
Therefore, $a=48$ and $c=36$
Then $(b+c)-a=34$