Average

1.		The average marks of Akrit decreased by one, when he replaced the subject in which he has scored 40 marks by the other two subjects in which he has scored 23 and 25 marks respectively. Later, when he also included 57 marks of Maths, the average marks increased by two. How many subjects were there initially?

18

16

12

15

2.		The average weight of 64 people in a group is 74 kg. If two new people come to the group, then the average is increased by 2 kg. Sum of the weights (in kg) of those new people is:

320

276

280

300

3.		In an examination, average marks for the entire class was 80. If 10% of the students scored 95 marks and 20% scored 90 marks, then, average marks of the remaining students of the class is:

80

75

70

90

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

10

15

18

12

5.		A monument has an average of 450 visitors on Sunday and 300 visitors on other days. The average number of visitors in the month of April beginning with a Sunday is:

325

275

350

375

6.		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

7.		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

8.		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

9.		What is the average of all the multiples of ten from 10 to 190 (both inclusive)?

90

95

100

105

10.		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