5th step to ZOHO - Quantitative Aptitude

TECHNICAL APTITUDE

1)How many 5-digit odd numbers can you make with 0, 1, 2, 3, 4, and no digit is repeated?

2) A door can be opened only with a security code that consists of five buttons:  1, 2, 3, 4, 5.  A code consists of pressing any one button, or  any two, or any three, or any four, or all five.  How many possible codes are there? (You are to press all the buttons at once, so the order doesn't matter.)

3) In January of the year 2000, I was one more than eleven times as old as my son William. In January of 2009, I was seven more than three times as old as him. How old was my son in January of 2000?

4) One-half of Heather's age two years from now plus one-third of her age three years ago is twenty years. How old is she now?

5) Nine persons went to a hotel for taking their meals . Eight of them spent Rs.12 each on their meals and the ninth spent Rs.8 than the average expenditure of all the nine. What was the total money spent by them?

6)From a pack of 52 cards, 1 card is drawn at random. Find the probability of a face card drawn.

7)A man and his wife appear in an interview for two vacancies in the same post. The probability of husband's selection is (1/7) and the probability of wife's selection is (1/5). What is the probability that only one of them is selected ?

8)Mr. Ram is on tour and he has Rs 360 for his expenses. If he exceeds his tour by 4 days he must cut down daily expenses by Rs 3. The number of days of Mr. Ram's tour programme is

9)How many times will minute hand and hour hand perpendicular in one day?

10) A person travels equal distances with speed of 3 km/hr, 4 km/hr and 5 km/hr and takes a total of 47 minutes. Find the total distance.

11)(log3 4) (log4 5) (log5 6) (log6 7) (log7 8) (log8 9) (log9 9) = ?

12)1/3log 10^125-2log10^4+log10^32

13)30% of the men are more than 25 years old and 80% of the men are less than or equal to 50

years old. 20% of all men play football. If 20% of the men above the age of 50 play football, what

percentage of the football players are less than or equal to 50 years?

14)Arun got 30% of the maximum marks in an examination and failed by 10 marks. However,

Sujith who took the same examination got 40% of the total marks and got 15 marks more than

the passing marks. What were the passing marks in the examination?

15) Arun bought a computer with 15% discount on the labeled price. He sold the computer for

Rs.2880 with 20% profit on the labeled price. At what price did he buy the computer?