Important questions about Average. Average MCQ questions with answers. Average exam questions and answers for students and interviews.

1. Third proportion of 10 and 20 is

Options

A : 30

B : 40

C : 25

D : 20

2. Navaneet has thrice the money Poonam has and Poonam has 25% more money than Hebah. If the average money of the three is Rs. 350, What is the amount that Navaneet has ?

Options

A : Rs. 175

B : Rs. 220.75

C : Rs. 218.55

D : Rs. 656.25

3. Find the average of first 50 natural numbers?

Options

A : 25

B : 25.5

C : 26

D : 26.5

4. In a mens hostel, there were 95 students. To accommodate 30 more students the average is decreased by rupees 5. But total expenditure increased by Rs.500. Find the total expenditure of the hostel now ?

Options

A : Rs. 4680

B : Rs. 4420

C : Rs. 4960

D : Rs. 5480

5. The mean of 100 observations is 40. It is found that an observation 84 was misread as 48. Then the correct mean is ?

Options

A : 40.36

B : 41.24

C : 41.92

D : 42.05

6. Without any stoppage, a person travels a certain distance at an average speed of 42 km/h, and with stoppages he covers the same distance at an average speed of 28 km/h. How many minutes per hour does he stop?

Options

A : 15 minutes

B : 20 minutes

C : 18 minutes

D : 22 minutes

7. The average age of 7 boys is increased by 1 year when one of tem whose age is replaced by a girl. What is the age of the girl ?

Options

A : 33 yrs

B : 27 yrs

C : 21 yrs

D : 29 yrs

8. The ratio of speeds of a car, a train and a bus is 5:9:4. The average speed of the car, the bus and the train is 72 km/hr together. What is the average speed of the car and the train together ?

Options

A : 84 km/hr

B : 96 km/hr

C : 72 km/hr

D : 60 km/hr

9. Out of three numbers, the first is twice the second and is half of the third. If the average of the three numbers is 56, what will be the sum of the highest number and the lowest number?

Options

A : 120

B : 160

C : 80

D : 60

10. In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ?

Options

A : 15 kg

B : 25 kg

C : 35 kg

D : 45 kg

1. It costs Rs. p each to send the first thousand messsages and Rs. q to send each subsequent one . If r is greater than 1,000, how many Rupees will it cost to send r messages ?

Options

A : 1000 (r - p) + pq

B : 1000 p + qr

C : 1000 (r - q) + pr

D : 1000(p - q) + qr

2. Three maths classes: A, B and C take an algebra test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. What is the average score of classes A, B, C ?

Options

A : 81

B : 78

C : 80.5

D : 81.5

3. The average of marks in 3 subjects is 224. The first subject marks is twice the second and the second subject marks is twice the third. Find the second subject marks ?

Options

A : 384

B : 96

C : 192

D : 206

4. How many window coverings are necessary to span 50 windows, if each window covering is 15 windows long?

Options

A : 4

B : 15

C : 3

D : 50

5. There are 44 students in a hostel, due to the administration, 15 new students has joined. The expense of the mess increase by Rs. 33 per day. While the average expenditure per head diminished by Rs. 3, what was the original expenditure of the mess ?

Options

A : Rs. 404

B : Rs. 514

C : Rs. 340

D : Rs. 616

6. On a school?s Annual day sweets were to be equally distributed amongst 112 children. But on that particular day, 32 children were absent. Thus the remaining children got 6 extra sweets. How many sweets was each child originally supposed to get ?

Options

A : 14

B : 16

C : 12

D : 15

7. The average monthly salary of 24 employees in an organisation is Rs. 1500. If the manager's salary is added, then the average salary increases by Rs. 400. What is the manager's monthly salary ?

Options

A : Rs. 8840

B : Rs. 11,500

C : Rs. 12,800

D : Rs. 9450

8. Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation ?

Options

A : 134

B : 137

C : 139

D : 141

9. 20 men went to a restaurant. Ninteen of them paid Rs.70 each and the twentieth man paid Rs.90.25 more than the average of all the 20 men. What is the total bill ?

Options

A : Rs. 1495

B : Rs. 548

C : Rs. 850

D : Rs. 1750

3. Sripad has scored average of 65 marks in three objects. In no subjects has he secured less than 58 marks. He has secured more marks in Maths than other two subjects. What could be his maximum score in Maths ?