Average Test 2

The average height of a group of 25 students is 160 cm. If the average height of the first 15 students is 155 cm, what is the average height of the remaining 10 students?

• 185

• 173.5

• 167.5

• 180

The average salary of a group of 5 employees is Rs. 20,000. If one of the employees leaves the company and the average salary becomes Rs. 18,000, what was the salary of the employee who left?

• 21100

• 25000

• 28000

• 2755

The captain of a cricket team of 11 members is 34 years old and the wicket keeper is 4 years older. If the ages of these two are excluded, the average age of the remaining players is two years less than the average age of the whole team. What is the average age of the team? 

• 27

• 22

• 45

• 47

A student's mark was wrongly entered as 89 instead of 98. Due to that the average marks for the class got increased by 1/2. What is the number of students in the class? 

• 19

• 18

• 16

• 21

A Batsman makes a score of  108 runs in the 12th inning and thus increases his average by 5. Find his average after the 12th inning. 

• 63

• 53

• 69

• 59

There were 50 students in a hostel. Due to the admission of 10 new students, the expenses of the mess were increased by Rs. 40 per day while the average expenditure per head diminished by Rs. 2. What was the original expenditure of the mess?

• 1050

• 600

• 700

• 800

Four friends went for a concert. Three of them spent Rs. 25 each on their tickets and the fourth person spent Rs. 9 more than the average expenditure of all four. What was the total money spent by them?

• 250

• 112

• 115

• 122

When a student weighing 55 kgs left a class, the average weight of the remaining 40 students increased by 500g. What is the average weight of the remaining 40 students?

• • 76 kg

• • 75.5 kg

• • 80.5 kg

• • 89 kg

The average temperature of a town in 9 days was recorded as 28°C. During the first 4 days, the average temperature was 24°C and the average temperature during the last 4 days was 30°C. What was the temperature on the 5th day?

• • 38

• • 45

• • 65

• • 36

The average salary of an employee for 15 days was Rs. 450 per day. For the first 8 days, his average salary was Rs. 400 per day and for the last 8 days, his average salary was Rs. 500 per day. What was his salary on the 8th day?

• • 450

• • 550

• • 520

• • 490