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4.Average
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The total marks obtained by a student in Physics, Chemistry and Mathematics together is $120$ more than the marks obtained by him in Chemistry. What is the average marks obtained by him in Physics and Mathematics together ?
A
$160$
B
$120$
C
$40$
D
$60$
Solution
$Ph + Ch + Ma =120+ Ch$
$\Rightarrow P h+M a=120 \Rightarrow\left(\frac{P h+M a}{2}\right)=60$
Standard 13
Quantitative Aptitude
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