Directions: Study the following table to answer these questions.
Percentage of marks obtained by six students in six different subjects. Number given in small brackets indicates the full marks of the subject.
Q1. What is the average percentage of marks obtained by all the three girls (Radha, Pratigya and Renuka) in English?
1) 63.67
2) 67.33
3) 66.66
4) 65.33
5) None of these
Q2. Marks obtained by all the three boys together in Hindi is how much more than that by all the three girls together in Hindi?
1) 9
2) 12
3) 25
4) 21
5) None of these
Q3. In which subject has Pratigya got the least marks?
1) Computer Sc
2) Economics
3) Hindi
4) English
5) None of these
Q4. What is the total marks obtained by Renuka in all the subjects?
1) 378
2) 398
3) 368
4) 408
5) None of these
Q5. What is the average marks obtained by these six students in Economics?
1) 52
2) 52.5
3) 55.5
4) 53.5
5) None of these
Answer & Explanation
1. 4
Average percentage of marks (of girls)
= (72 + 76 + 48)/3 = 65.33
2. 5
Marks obtained by the boys (in Hindi)
= (75% of 60) + (65% of 60) + (70% of 60)
= 45 + 39 + 42 = 126
Marks obtained by girls
= (65% of 60) + (75% of 60) + (45% of 60)
= 27 + 39 + 45 = 111
Reqd Difference = 126 – 111 = 15
3. 3
In Hindi, she has got only 39 marks.
4. 2
Total marks gained by Rani
= (90% of 120 + 48% of 75 + 75% of 60 + 68% of 75 + 76% of 150 + 88% of 50
= 108 + 36 + 45 + 51 + 114 + 44 = 398
5. 3
Avg in Eco =
(92 + 80 + 52 + 64 + 88 + 68)/6 of 75
= 444/ 6*100 * 75 = 5505