Question

The sum of marks of A and B in a class test is 20. If A got 10 marks then what's the expression for the given condition?
( Consider marks of B as x )

• A. $10+x=20$
  
• B. $x=20$
  
• C. $10-x=20$
  
• D. $x-10=20$
  

Answer 1

The correct option is A $10+x=20$


As given, 'A' got 10 marks.

sum of marks of A and B is 20.
$\Rightarrow 10+x=20$

$\therefore$ The required equation is
$10+x=20$