SaiBook.us WordProblems

Lesson Example Discussion Quiz: Class Homework

Quiz In Class

Title: Averages

Grade: 8-a Lesson: S2-L4

Explanation: Hello students, as we have discussed a few problems on this topic. Now, its time for you to solve the problems on your own and fill the answers in the quiz sheet and get your queries addressed by the tutor in the class.

Quiz: in Class

Problem Id	Question	Description	Options
1	Solve the problem.	In a bus there are 16 passengers. Three passengers left the bus and six new passengers joined. If the average age decreased by five years and the total age decreased by 2. What is the new average age of the bus ? (in years)	A) 23 B) 33 C) 44 D) 26
2	Solve the problem.	The average of 10 numbers is 15. If one of them exceeds the average of remaining by 8. Finf the number.	A) 8 B) 15 C) 3 D) 5
3	Solve the problem.	The bowling average of a cricketer was 14.6. He improves his bowling average by 0.2 points when he takes 30 runs in his last match. Find the number of wickets taken by him before the last match.	A) 211 B) 312 C) 210 D) 244
4	Solve the problem.	There was one mess for 40 boarders in a certain hostel. If the number of boarders were increased by 20, the expenses of the mess would increase by $60 per month, while the average expenditure per head diminish by $2. Find the original monthly expenses.	A) $360 B) $510 C) $450 D) $390
5	Solve the problem.	John drove for 6 hours at a rate of 70 miles per hour and for 4 hours at 80 miles per hour. What was his average speed for the whole journey?	A) 123 B) 122 C) 124 D) 132

Problem Id

Question

Description

Options

Solve the problem.

In a bus there are 16 passengers. Three passengers left the bus and six new passengers joined. If the average age decreased by five years and the total age decreased by 2. What is the new average age of the bus ? (in years)

A) 23

B) 33

C) 44

D) 26

Solve the problem.

The average of 10 numbers is 15. If one of them exceeds the average of remaining by 8. Finf the number.

A) 8

B) 15

C) 3

D) 5

Solve the problem.

The bowling average of a cricketer was 14.6. He improves his bowling average by 0.2 points when he takes 30 runs in his last match. Find the number of wickets taken by him before the last match.

A) 211

B) 312

C) 210

D) 244

Solve the problem.

There was one mess for 40 boarders in a certain hostel. If the number of boarders were increased by 20, the expenses of the mess would increase by $60 per month, while the average expenditure per head diminish by $2. Find the original monthly expenses.

A) $360

B) $510

C) $450

D) $390

Solve the problem.

John drove for 6 hours at a rate of 70 miles per hour and for 4 hours at 80 miles per hour. What was his average speed for the whole journey?

A) 123

B) 122

C) 124

D) 132