Hughes aptitude placement paper

Hi Friends,

I appeared for an interview at Hughes last week. As I am a fresher, they conducted a written test first which had questions to check my aptitude. Some of the questions I can recollect from the test are as below. I hope they are helpful to some of you like me.

The age of the two friends were in the ration of 6:5. If the sum of their ages is 66. Then after how many years their ratio will become 7:6?
a) 11 b) 6 c) 10 d) 12

The speed of a boat in still water in 45 km/hr and the rate of current is 9 km/hr. The distance travelled downstream in 18 minutes will be
a) 5.4 kms b) 16.2 kms c) 14.2 kms d) 10 kms

At what rate percent per annum will a sum of money double in 10 years?
a) 10% b) 11% c) 12% d) 13%

I start from my office facing southwards and go 8 km, then turn right and go 6 km. In which direction am I from the starting point?
a.) South-west b.) South c.) West d.) North e.) East

(2/3) of a number is 4 more than the (1/6) of the same number?
a) 6 b)8 c)36 d)24

6 persons standing in queue with different age group, after two years their average age will be 43 and seventh person joined with them. Hence the current average age has become 45. Find the age of seventh person?
a) 43 b) 69 c) 52 d) 31