Average

1.		In the morning, a student reads 100 pages at the rate of 60 pages per hour. In the evening, she reads next 100 pages at the rate of 40 pages per hour. Her average rate of reading, in pages per hour is:

60

50

48

45

2.		The average weight of Arpit, Bhuvan and Chandu is 84 kg. If Dheeraj joins the group, the average weight of the group becomes 80 kg. If another person Elena who weights is 3 kg more than Dheeraj Replaces Arpit, Then the average of Bhuvan, Chandu, Dheeraj and Elena becomes 79 kg. What is the weight of Arpit?

64

72

75

90

3.		The average weight in a class of 10 students increases by 3.5 kg when a teacher comes in place of one them weighing 65 kg. The weight of the teacher is:

80 kg

90 kg

100 kg

115 kg

4.		A student on her first 3 tests received an average score of N points. If he exceeds his previous average score by 40 points on his fourth tests , then what is the average score for the first 4 tests?

N + 30

N + 20

N + 15

N + 10

5.		In a class, the average age of students is 11 years. The average age of the class increases by 1/4 years, if a 15 year old student joins the class. How many students were there in the class initially?

12

15

18

20

6.		15. In a town, average rainfall on Monday, Tuesday, Wednesday and Thursday is 24 cm. Average rainfall on Thursday, Friday, Saturday and Sunday is 30 cm. Average rainfall on Monday to Sunday is 27 cm. The actual Rainfall on Thursday is:

25

26

27

30

7.		In a class of 10 students, the average marks obtained by them is 30. The average marks obtained by the first six students is 20, and the last five is 42. The marks obtained by the sixth student is:

35

27

30

40

8.		The average of first 7 multiples of 3 is:

10

15

18

12

9.		In an exam of 100 marks, the average marks of a class of 40 students is 76. If the top 3 scorers of the class leave, the average score falls down by 1. If the other two toppers except the highest one scored not more than 85, then what is the minimum score the topper can have?

86

90

95

98

10.		In an examination, the average marks was found to be 50. After deducting computational errors, the marks of the 100 candidates had to be changed from 90 to 60 and the average marks came down to 45. Total No of candidates who took the examination were:

450

600

500

400