Average Questions Set – 9

Average Questions Set – 9

Average based questions are important for competitive exams. usually 2-3 questions from average section are asked in SBI, IBPS, SSC, UPSC

Q1. The average weight of three students is 40 kg. If the first student is twice the second and the second student is thrice the weight of the third student, then what is the weight of the student with the lightest weight?
(a) 18
(b) 20
(c) 14
(d) None of these

Q2. In a test, the average marks of five students was found to be 50. However, during cross-checking of the papers, it was discovered that the mark of one student was mis–read as 84 instead of 48. Find the correct average.
(a) 57.2
(b) 42.8
(c) 46.5
(d) 43.1

Q3. In a prep school, the average weight of 30 girls in a class of 50 students is 16 kg and that of the remaining students is 15.5 kg. What is the average weight of the all the students in the class?
(a) 15.2 kg
(b) 15.8 kg
(c) 15.4 kg
(d) None of these

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Test: Average_Set9

Q4. The average of the amount of money that 10 girls have is Rs.45. When two more girls join, the average increased by Rs.2. Find the average amount of the two new girls.
(a) Rs. 57
(b) Rs. 54
(c) Rs. 48
(d) None of these

Q5. In what ratio must 35% spirit solution be mixed with pure spirit to get a resultant solution of 56% spirit?
(a) 35: 44
(b) 44: 21
(c) 8: 3
(d) 56: 9

Answers:

1. D            2. B        3. B         4. A          5. B