Total of Arun's marks in Sanskrit and Mathematics together are 80 more than his marks in Science. His average… · ABC26GN1556
Subject: General Aptitude · Chapter: Average
Total of Arun's marks in Sanskrit and Mathematics together are 80 more than his marks in Science. His average marks in the three subjects are 100. What are his marks in Science?
(a)80
(b)110
(c)120
(d)Data inadequate
(e)None of these
Answer
Answer (as printed): B
Explanation
$S+M+S c=100 \times 3=300$ and $S+M=S c+80$ $$\Rightarrow S c+80+S c=300 \Rightarrow 2 S c=220 \Rightarrow S c=110 .$$
Explanation as extracted from the printed page; notation may be imperfect.