ABC26GN2176 · Percentage

Subject: General Aptitude · Chapter: Percentage · Exam: · Marks: · Difficulty:

The following table gives the marks obtained by a student in the first and second semester examinations in four subjects in a given year.

Subjects	1st Semester	2nd Semester	Maximum Marks
Physics	35	30	50
Chemistry	30	25	50
Mathematics	65	45	100
Social Science	80	85	100

The aggregate percentage of marks obtained by the student in the given year is nearly

(a)56

(b)61

(c)64

(d)66

Answer

Answer (as printed): D

Explanation

Total marks obtained $=(35+30+30+25+65+45+$ $80+85)=395$. $$\begin{aligned} \text { Maximum marks } & =(50 \times 2+50 \times 2+100 \times 2+100 \times 2) \\ & =600 . \end{aligned}$$ ∴ Percentage of marks $=\left(\frac{395}{600} \times 100\right) \%=65.8 \% \approx 66 \%$.

Explanation as extracted from the printed page; notation may be imperfect.

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