Study the given bar graph and answer the question that follows.
The given bar graph represents the average percentage marks obtained in English, Hindi and General Knowledge by students of four centres (A, B, C and D).
If the full marks in English is 150, Hindi is 50 and General Knowledge is 200, then find the difference between the total marks of the centre A and D.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e 27.5.
The full marks in English in A = 150 × 90/100 = 135
The full marks in Hindi in A = 50 × 60/100 = 30
The full marks in General Knowledge in A = 200 × 80/100 = 160
Total mark of centre A = 135 + 30 + 160 = 325
The full marks in English in D = 150 × 85/100 = 127.5
The full marks in Hindi in D = 50 × 90/100 = 45
The full marks in General Knowledge in D = 200 × 90/100 = 180
Total mark of centre D = 127.5 + 45 + 180 = 352.5
Difference = 352.5 - 325 = 27.5