54. In a railway station, there are two trains going. One in the harbour line and one in the main line, each having a frequency of 10 minutes. The main line service starts at 5 o’clock and the harbour line starts at 5.02A.M. A man goes to the station every day to catch the first train that comes. What is the probability of the man catching the first train?

55. A family X went for a vacation. Unfortunately it rained for 13 days when they were there. But whenever it rained in the mornings, they had clear afternoons and vice versa. In all they enjoyed 11 mornings and 12 afternoons. How many days did they stay there totally?
Ans:

18

56. There are 6561 number of balls in a bag. Out of which one is heavy ball. In how many minimum number of weighing you can find the heavy ball

8

57. The profit made by a company in one year is enough to give 6% return on all shares. But as the preffered shares get on return of 7.5%, so the ordinary shares got on return of 5%. If the value of preferd shares is Rs 4,000000, then what is the value of ordinary shares?

Rs. 6,000000

58. A & B two places. C & D are two people. C started from A and D started from B. When they meet each other in the way C traveled 18 m more than D. Then C takes 13 and half a minute and D takes 24 minutes to reach the other end. What was the distance between A & B
Ans:

126

59. In a train there is one brakeman, conductor, engineer & fireman. Their names are Art, John, Tom & Pete given in this order or in reverse order. You have to tell the occupation of the four, w.r.t. these conditions:-
1. Brakeman has no relatives.
2. John is older than art.
3. Engineer & fireman are brothers.
4. John is pete’s nephew.
5. Fireman is not conductor’s uncle.
6. Conductor is not engineer’s uncle.

Ans:

Pete & Tom are brothers. Tom–Father and John is his son.
Art–Brakeman.
John–Conductor.
Tom–Engineer.
Pete–Fireman.