Aptitude Questions and Answers # 2

1- The average between a two digit number and the number obtained by interchanging the digits is 9. What is the difference between the two digits of the number?

1. 8
2. 2
3. 5
4. Cannot be determined

Answer: Cannot be determined

2- Pipe A can fill in 20 minutes and Pipe B in 30 mins and Pipe C can empty the same in 40 mins.If all of them work together, find the time taken to fill the tank
1. 17 1/7 mins
2. 20 mins
3. 8 mins
4. none of these

Answer: 17 1/7 mins

3- A person has 4 coins each of different denomination. What is the number of different sums of money the person can form (using one or more coins at a time)?
1. 16
2. 15
3. 12
4. 11

Answer: 15

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4- The simple interest on a certain sum of money for 3 years is 225 and the compound interest on the same sum at the same rate for 2 years is 153 then the principal invested is…
1. 1500
2. 2250
3. 3000
4. 1875

Answer: 1875

5- A cow is tethered in the middle of a field with a 14 feet long rope. If the cow grazes 100 sq. ft. per day, then approximately what time will be taken by the cow to graze the whole field ?
1. 2 days
2. 6 days
3. 18 days
4. None of these

Answer: 6 days

6- 2 hours after a freight train leaves Delhi a passenger train leaves the same station travelling in the same direction at an average speed of 16 km/hr. After travelling 4 hrs the passenger train overtakes the freight train. The average speed of the freight train was?
1. 40
2. 30
3. 80
4. 60

Answer: 40

7- The two colors seen at the extreme ends of the pH chart are:
1. Red and Blue
2. Red and Green
3. Green and Blue
4. Orange and Green

Answer: Red and Blue

8- 8 15 24 35 48 63 _?
1. 70
2. 80
3. 75
4. 88

Answer: 80

9- One of Mr. Horton, his wife, their son, and Mr. Horton’s mother is a doctor and another is a lawyer.
a) If the doctor is younger than the lawyer, then the doctor and the lawyer are not blood relatives
b) If the doctor is a woman, then the doctor and the lawyer are blood relatives.
c) If the lawyer is a man, then the doctor is a man. Whose occupation you know?

1. Mr. Horton: he is the doctor
2. Mr. Horton’s son: she is the lawyer
3. Mr. Horton: he is the doctor
4. Mr. Horton’s mother: she is the doctor

Answer: . Mr. Horton: he is the doctor

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10- In the given figure, PA and PB are tangents to the circle at A and B respectively and the chord BC is parallel to tangent PA. If AC = 6 cm, and length of the tangent AP is 9 cm, then what is the length of the chord BC?
1. 4 cm
2. 8 cm
3. 6 cm
4. 5 cm

Answer: 4 cm

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