51. A person travelled by train for 1 hour at a speed of 50 kmph. He then travelled by a taxi for 30 minutes at a speed of 32 kmph to complete his journey. What is the average speed at which he travelled during the journey?
Answer: 44 kmph
Explanation:Total distance travelled in 1 hour
= 50 + (&frac; x 32) km
= 66 km
? Average speed = Total distance/Total time
= 66/(3/2) = 44 kmph.
Workspace
Global Edge
52. An Athlete runs 200 metres race in 24 seconds. His speed is:
Answer: 30 km/hr
Explanation:Speed = (200/24) m/sec = 25/3 m/sec
convert m/sec to km/hr
(25/3 * 18/5) km/hr = 30 km/hr.
Workspace
Global Edge
53. 7 years ago, the ages (in years) of A and B were in the ratio 4:5 and 7 years hence they will be in the ratio 5:6. The present age of B is:
Answer: 77 years
Explanation:7 years ago, A's age=4x years
and B's age=5xyears
so (4x+14)/(5x+l4)=5/6
=> 25x + 70 = 24x + 84
x = (84 - 70) = 14
B's present age = 5x + 7 = 5*14 + 7 = 77 years
Workspace
Global Edge
54. A and B can together finish a work in 30 days. They worked together for 20 days and then B left. After another 20 days, A finished the remaining work. In how many days A alone can finish the job ?
Answer: 60
Explanation:(A + B)'s 1 day's work = 1/30
so (A&B) 20 days work = (20*1/30) = 2/3
so left work = (1?2/3)=1/3
1/3 work is done by A = 20 days.
So whole work will be done by A = (20 x 3) = 60 days.
Workspace
Global Edge
55. A' and 'B' complete a work togather in 8 days.If 'A' alone can do it in 12 days.Then how many day 'B' will take to complete the work?
Answer: 24 days
Explanation:A & B one day work = 1/8
A alone one day work = 1/12
B alone one day work = (1/8 - 1/12) = ( 3/24 - 2/24)
=> B one day work = 1/24
so B can complete the work in 24 days.
Workspace
Accenture Adobe Alcatel-Lucent Aricent Amazon Wipro Global Edge IBM
56. In the following question find out the alternative which will replace the question mark.
Tree : Forest :: Grass : ?
Answer: Lawn
Explanation:As Tree is found in Forest similarly Grass is found in Lawn.
Workspace
Tech Mahindra Global Edge
57. Introducing Sonia, Aamir says, "She is the wife of only nephew of only brother of my mother." How Sonia is related to Aamir?
Answer: Wife
Explanation:Brother of mother means maternal uncle. Hence only nephew of Aamir's maternal uncle means Aamir himself. Therefore Sonia is the wife of Aamir.
Workspace
Global Edge
58. If "JUDGE" is coded as "UJDEG" then "ORDER" is coded as
Answer: RODRE
Explanation:Here is no explanation for this answer
Workspace
Cognizant Global Edge
59. In a certain code LEARNING is written as LGNINRAE. How will SURPRISE be written in that code?
Answer: SESIRPRU
Explanation:There are 8 letters in word.
The first letter of the word has been left intact.
The order of remaining letters has been reversed.
Workspace
Tech Mahindra Global Edge
60. Five cars are parked in a row facing Eastward. E is parked to the left of A, B and C. B, C and A are parked to the left of D. C is parked between A and B. If B is parked fourth from the left, how far is A parked from the right?
Answer: Fourth
Explanation:Here is no explanation for this answer
Workspace
Cognizant Global Edge
Login/Register
