1. 10 years ago the average age of all the 25 teachers of the Girls college was 45 years. 4 years ago, the principal has retired from her post at the age of 60 years. So after one year a new principal whose age was 54 years recruited from outside. The present average age of all the teachers is, if principla is also considered as a teacher:
(a) 54(18/25) years
(b) 55 (17/25) years
(c) 49 (1/2) years
(d) None of these
2. 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 on his foot at the speed of 10 km/hr from Gokul to Brindaban. Then he returned from Brindaban to Mathura via Gokul at the speed of 24 km/hr riding on the horse. The average speed of the whole trip is:
(a) 20 km/hr
(b) 25 km/hr
(c) 19.2 km/hr
(d) 18.5 km/hr
(e) None of these
3. Anoop travels first (1/3) rd of the total distance at the speed of 10 km/hr and the next (1/3) rd distnace at the speed of 20 km/hr and the last (1/3)rd distance at the speed of 60 km/hr. the average speed of Anoop is:
(a) 15 km/hr
(b) 18 km/hr
(c) 25 km/hr
(d) 30 km/hr
(e) None of these
4. Columbus started his journey from Lucknow to Kolkata, which is 200 km, at the speed of 40 km/hr then he went to Bangalore which is 300 km, at the speed of 20 km/hr. Further he went to Ahmedabad which is 500 km, at the speed of 10 kmk/hr. The average speed of Columbus is:
(a) 14 (2/7) km/hr
(b) 14 (5/7) km/hr
(c) 15.6 km/h
(d) 16.2 km/h
(e) None of these
5. The average weight of all the 11 players of Indian cricket team is 50 kg. If the average of first six lightest weight players is 49 kg and that of the six heaviest players is 52 kg. The average weight of the player which lies in the sixth position in the list of players when all the 11 players
are arranged in the order of increasing or decreasing weights:
(a) 56 kg
(b) 52 kg
(c) 51 kg
(d) 49 kg
(e) None of these
6. 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
(a) 24
(b) 25
(c) 20
(d) 40
(e) None of these
7. The average value of property of Mittal, Ambani and Singhania is Rs. 11111 crore. The property of Singhania is as less as the property of Mittal is greater than the average property of both the Singhania and Mittal. The value of property of Ambani is:
(a) Rs.111 crore
(b) Rs. 11111 crore
(c) Rs. 3703.7 crore
(d) Can't be determined
(e) None of these
Directions:(8-10) Six years ago there were 5 members in the Arthur's family and then the average age of the family was 36 years. Mean while Arthur's got married and gave birth to a child. Still average age of his family is same now.
8. The present age of his wife is:
(a) 25 years
(b) 26 years
(c) 32 years
(d) data insufficient
(e) None of these
9. What was the age of his wife at the time of her child birth, if the difference between the age of her child and herself was 26 years?
(a) 25 years
(b) 32 years
(c) 26 years
(d) Can't be determined
(e) None of these
10. What is the age of his child at present ?
(a) 2 years
(b) 3 years
(c) 6 years
(d) Can't be determined
(e) None of these
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