Aptitude Questions and Answers for PLACEMENTS

Ques. If 5 persons can do 5 times of a work in 5 days, then 10 persons can do 10 times of that work in:
Op 1: 10 days
Op 2: 8 days
Op 3: 5 days
Op 4: 2 days
Op 5:
Correct Op : 3


Ques. Two taps can fill a cistern in 6 min. and 7 min. respectively. If these taps are opened alternatively for a minute, in what time will the cistern be filled?
Op 1: 5.67 min
Op 2: 6.25 min
Op 3: 5 min
Op 4: 45/7 min
Op 5:
Correct Op : 4

Ques. Two taps A and B can fill a cistern in 28 min. and 42 min. respectively. Third tap C can empty it in 42 min. If all the three taps are opened, the time taken to fill the cistern is:
Op 1: 30 min
Op 2: 35 min
Op 3: 28 min
Op 4: 42 min
Op 5:
Correct Op : 3


Ques. 49 pumps can empty a reservoir in 6½ days, working 8 hours a day. If 196 pumps are used for 5 hours a day, then the same work will be completed in:
Op 1: 2.6 days
Op 2: 3 days
Op 3: 2.5 days
Op 4: 2 days
Op 5:
Correct Op : 1

Aptitude Questions and Answers for PLACEMENTS

Ques. The manufacturer of a certain item can sell all he can produce at the selling price of Rs. 60 each. It costs him Rs. 40 in materials and labour to produce each item and he has overhead expenses of Rs. 3000 per week in order to operate the plant. The numb
Op 1: 200
Op 2: 250
Op 3: 300
Op 4: 400
Op 5:
Correct Op : 1


Ques. A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays Rs. 225 for it, the cost price of the bicycle for A is:
Op 1: Rs. 110
Op 2: Rs.120
Op 3: Rs. 125
Op 4: Rs. 150
Op 5:
Correct Op : 4


Ques. If 5% more is gained by selling an article for Rs. 350 than by selling it for Rs. 340, the cost of the article is:
Op 1: Rs. 50
Op 2: Rs. 160
Op 3: Rs. 200
Op 4: Rs. 225
Op 5:
Correct Op : 3

Aptitude Questions and Answers for PLACEMENTS

Ques. The probability of occurrence of event X is 0.8 and that of event Y is 0.05. The events are mutually exclusive. What is the probability of occurrence of either X or Y?
Op 1: 0.85
Op 2: 0.75
Op 3: 0
Op 4: Cannot be determined
Op 5:
Correct Op : 1



Ques. 10% of the voters did not cast their vote in an election between two candidates. 10% of the votes polled were found invalid. The successful candidate got 54% of the valid votes and won by a majority of 1620 votes. The number of voters enrolled on the vo
Op 1: 25000
Op 2: 33000
Op 3: 35000
Op 4: 40000
Op 5:
Correct Op : 1

Ques. A, B, C started a business with their investments in the ratio 1:3:5. After 4 months, A invested the same amount as before and B as well as C withdrew half of their investments. The ratio of their profits at the end of the year is:
Op 1: 4:3:5
Op 2: 5:6:10
Op 3: 6:5:10
Op 4: 10:5:6
Op 5:
Correct Op : 2

Aptitude Questions and Answers for PLACEMENTS

Ques. Shikhar has a bag with 2 balls, each of which can be black or white with equal probability. Now, he draws out a ball and it turns out to be black. After this event, what is the probability that both balls are black?
Op 1: 1/2
Op 2: 1/4
Op 3: 1
Op 4: None of these
Op 5:
Correct Op : 1


Ques. A coin is tossed thrice. What is the probability that the first toss of coin lands head, second tail and third lands tail as well?
Op 1: 1/16
Op 2: 3/8
Op 3: 1/8
Op 4: None of these
Op 5:
Correct Op : 3

Ques. The probability of occurrence of event A is 0.1 and that of event B is 0.2. The events are mutually exclusive. What is the probability of occurrence of both A and B?
Op 1: 0.1
Op 2: 0
Op 3: 1
Op 4: Cannot be determined
Op 5:
Correct Op : 2