free Online Test Average Questions and Answers Quiz 4
Description: Free Online Test questions and answers on Average with explanation for various competitive exams,entrance test. Solved examples with detailed answer test 4
"To err is human; to forgive, divine."
- Alexander Pope
After replacing an old member by a new member, it was found that the average age
of five members of a club is the same as it was 3 years ago. What is the difference
between the ages of the replaced and the new member?
Nine persons went to a hotel for taking their meals. Eight of them spent Rs.12 each
on their meals and the ninth spent Rs.8 more than the average expenditure of all the
nine. What was the total money spent by them?
A, B, C, D, E, F are the only six families in Indira Nagar. A, B, C, D, E and F has 7,
8, 10, 13, 6 and 10 members in their families respectively. If 1 member from all the
six families left their respective families to accommodate themselves in the hostel
of IIM Lucknow, then the average number of members now in each family of Indira
Nagar is :
The average presence of students in a class on Monday, Tuesday and Wednesday is
30 and on the Wednesday, Thursday, Friday and Saturday is 28 then number of
students who attended the class on Wednesday is, if the average number of students
on all the six days is 27 :
Sri Krishna took the chariot and started his journey from Mathura to Gokul by his
chariot at the speed of 40 km/hr and then, the same distance he travelled onn his
foot at the speed of 10 km/hr from Gokul to Brindaban. Then he returned from
Brindabann to Mathura via Gokul at the speed of 24 km/hr riding on the horse. The
average speed of the whole trip is :
Since the distance from Mathura to Gokul is same as that of Gokul to Brindaban.
So, the average speed from Mathura to Brindaban = $2 \times 40 \times 10 \over (40+10)$ = 16 km/hr
Again since he returned on the same path, so the distance from Mathura to
Brindaban is same in both the directions.
Thus, the required average speed = $2\times16\times24\over(16+24)$=19.2 km/hr