1. A hiker walked for two days. On the second day, the hiker walked 2 hrs longer and at an average speed of 1 km per hour faster than he walked on the first day. If during the two days he walked a total of 64 km and spent a total of 18 hrs walking. What was his average speed on the first day? (2)
- (1) 2 km/h
- (2) 3 km/h
- (3) 4 km/h
- (4) 5 km/h
- (5) None of these
2. An airplane flies along the four sides of a square field at the speeds of 200, 400, 600 and 800 km/h. The average speed of the plane around the field in km/h is: (1)
- (1) 384
- (2) 400
- (3) 500
- (4) 284
- (5) None of these
3. The average age of Sachin and Ganguly is 35 years. If Kaif replaces Sachin, the average age becomes 32 years and if Kaif replaces Ganguly, then the average age becomes 38 years. If the average age of Dhoni and Irfanbe half of the average age of Sachin, Ganguly and Kaif, then the average age of all the five people is: (1)
- (1) 28 years
- (2) 32 years
- (3) 25 years
- (4) 30 years
- (5) None of these
4. There are twice the number of two wheelers as there are three wheelers and the number of 4 wheelers are equal to the number of two wheelers. The average number of wheels per vehicle is: (1)
- (1) 3
- (2) 4
- (3) 5
- (4) Can’t be determined
- (5) None of these
5. The average age of A and B is 20 years. If C were to replace A, the average would be 19 and if C were to replace B, the average would be 21. What are the ages of A, B and C? (1)
- (1) 22, 18, 20
- (2) 28, 19, 20
- (3) 22, 20, 17
- (4) Can’t be determined
- (5) None of these
