List of top Logical Reasoning Questions

There are two similar figures below with some numbers. The left one is complete whereas one number is missing in the right one. Find a suitable number to fill in place of the question mark.

Complete the following series by replacing the ?: (TBLD, VEPI, XHTN, ?)

Four children A, B, C & D are having some chocolates each.
A gives B as many as he already has, he gives C twice of what C already has and he gives D thrice of what D already has.
Now, D gives (1/8)th of his own chocolates to B.
Then A gives 10% chocolates he now owns to C and 20% to B.
Finally, all of them have 35 chocolates each.
What is the original number of chocolates each had in the beginning?

Which of the designs best completes the following sequence?

“The increase in the number of reality shows on television channels bolsters the contention that channel owners are more interested in boosting their revenues by pandering to voyeuristic tendencies of viewers.” The premise behind the above argument is that

“Unlike other retail outlets, where items are purchased in any number of units the customer wants, in super-markets items are grouped in bulk packages. This bulk buying offers savings to the customer. The option to buy at wholesale prices by buying in bulk makes super-markets a practical choice for budget-conscious consumers.” Which of the following is an assumption necessary to the author’s argument?

“Indigestion? Acidity? Unable to sleep?... Don’t spend the time tossing and turning! Take Magix for a sound, restful sleep … you’ll soon fall asleep, and wake up refreshed and energized. Remember … Magix when you are suffering from acidity and need that sleep!”
All of the following are claims of Magix except:

What was Sheela’s word?

EFLK : MOR ::

Select the alternative that logically follows the two given statements:
Some rocks are not tables.
Some rocks are balloons.

A, B, C, D and E sit on a long bench. C does not sit next to A or E. A and E have three persons sitting between them.
Who is sitting in the middle of the bench?

A, B, C, D and E sit on a long bench. C does not sit next to A or E. A and E have three persons sitting between them.
Who are sitting at the extreme ends of the bench?

Find the missing numbers in the following set

2	4	6	8	10
2	14	34	??	98

There are 6 volumes of books on a rack kept in order (such as, vol. 1, vol. 2 and so on). After some readers used them, their order got disturbed. The changes showed as follows:
Vol.5 was directly to the right of vol. 2
Vol 4 has vol. 6 to its left and both were not at Vol.3's place.
Vol.1 has Vol.3 on right and Vol.5 on left.
An even numbered volume is at Vol.5's place.
Find the order in which the books are kept now, from the four given alternatives:

All German philosophers, except for Marx, are idealists. From which of the following can the statements above be most properly inferred?

Ramaswami was studying for his examinations and the lights went off. It was around 1:00 a.m. He lighted two uniform candles of equal length but one thicker than the other. The thick candle is supposed to last six hours and the thin one two hours less. When he finally went to sleep, the thick candle was twice as long as the thin one. For how long did Ramaswami study in candle light?

The numerator and denominator of a fraction is in the ratio 2:3.If 6 are subtracted from the numerator the value of the fraction becomes \(\frac 23\) of the original fraction.The numerator of the original fraction is,

A person wanted to withdraw X rupees and Y paise from the bank. But cashier made a mistake and gave him Y rupees and X paise. Neither the person nor the cashier noticed that. After spending 20 paise, the person counts the money. To his surprise, he has double the amount he wanted to
withdraw. Find X and Y. (1 Rupee = 100 Paise)

Four children A, B, C and D are having some chocolates each.
A gives B as many as he already has, he gives C twice of what C already has and he gives D thrice of what D already has.
Now, D gives (\(\frac 18\))^th of his own chocolates to B.
Then A gives 10% chocolates he now owns to C and 20% to B.
Finally, all of them have 35 chocolates each. What is the original number of chocolates each had in the beginning?

A drawer contains 10 black and 10 brown socks which are all mixed up. What is the fewest number of socks you can take from the drawer without looking and be sure to get a pair of the same color?

A placement company has to assign 1000 SW personnel who are skilled in Java and Dot Net to a prospective outsourcing company. He finds that 750 are having Dot Net skills and 450 have Java skills. Some have skills in both Java and Dot Net. Find the numbers who have skills in both Java and Dot Net.

There are two similar figures below with some numbers. The left one is complete where as one number is missing in the right one. Find a suitable number to fill in place of the question mark.

Questions are based on a set of conditions. In answering some of the questions, it may be useful to draw a rough diagram. Choose the response that most accurately and completely answers each question.

A BPO has assigned duty to nine operators - Abdulla, Ballal, Chandan, Dogra, Eshita, Falguni, Ganguli, Henri and Indra - on Monday, January 05, 2009 from 00:00 hours. Each operator commences duty at any of the following hours: 00:00 hrs, 04:00 hrs, 08:00 hrs, 12:00 hrs, 16:00 hrs and 20:00 hrs. At any point in time, at least one operator is required to take clients' calls. Each operator works continuously for eight hours. All operators located at any single location start work simultaneously. The operators took training in five different colleges: Abhinam College, Sutanama College, Gutakal College, Barala College and Khatamanga College. These colleges are located in the cities Jamshedpur, Pune, Noida, Hyderabad and Mangalore, not necessarily in that order. The operators operate from the cities where their respective colleges are located.

The conditions:
1. Indra operates alone from a city other than Mangalore and Jamshedpur.
2. Operator(s) trained in Abhinam College will start working at 12:00 hrs.
3. Only Dogra and Falguni operate from Pune, but they are not trained in Gutakal College.
4. Three of the operators took training from Sutanama College, and they operate from Noida.
5. The operator(s) from Jamshedpur will start working at 00:00 hrs.
6. Abdulla and Henri operate together as a two-member team from a single location. They do not operate from Mangalore.
7. No operator(s) will join at 20:00 hrs.
8. Ballal, who alone operates from his location, was not trained in Barala College, and will commence his duty four hours after the operator(s) trained in Gutakal College.
9. The operator(s) trained in Barala College operate from Hyderabad.
10. The number of operator(s) trained in Khatamanga College is the same as the number of operator(s) trained in Barala College.

Questions are based on a set of conditions. In answering some of the questions, it may be useful to draw a rough diagram. Choose the response that most accurately and completely answers each question.

Seven bands were scheduled to perform during the week long music festival at XLRI. The festival began on a Monday evening and ended on the Sunday evening. Each day only one band performed. Each band performed only once. The organizing committee had the task of scheduling the performances of the seven bands -- Cactus, Axis, Enigma, Boom, Fish, Dhoom and Bodhi Tree. The festival schedule followed the following conditions:

1. The performance of Bodhi Tree, the home band of XLRI, did not precede the performance of any other band.
2. Among the visiting bands three were rock bands and the other three were fusion bands. All three bands of the same genre were not allowed to perform consecutively.

Additional constraints:
- Boom, which was a rock band, refused to perform immediately before or after Fish.
- Meet, who was a lead vocalist with a rock band, refused to perform after Angelina.
- Angelina, the only female lead vocalist in the music fest besides Bony, was with the band Enigma. Angelina refused to perform after Thursday citing personal reasons.
- Ali, who was the lead vocalist of a rock band, was not with the band Dhoom, and did not perform on Saturday.
- Sid, the lead vocalist of the rock band Cactus, could perform only on Monday.
- Rupam, the only male among the lead vocalists of the fusion bands, was with Fish and performed on Wednesday.
- None of the bands performed in absence of their lead vocalist.

Questions are based on a set of conditions. In answering some of the questions, it may be useful to draw a rough diagram. Choose the response that most accurately and completely answers each question.

Five colleagues pooled their efforts during the office lunch-hour to solve the crossword in the daily paper.

Colleagues: Mr. Bineet, Mr. Easwar, Ms. Elsie, Ms. Sheela, Ms. Titli.
Answers: Burden, Barely, Badshah, Rosebud, Silence.
Numbers: 4 down, 8 across, 15 across, 15 down, 21 across.
Order: First, second, third, fourth, fifth.

The following conditions apply:

1. Titli produced the answer to 8 across, which had the same number of letters as the previous answer to be inserted, and one more than the subsequent answer which was produced by one of the men.
2. It was not Bineet who solved the clue to ‘Burden’, and Easwar did not solve 4 down.
3. The answers to 15 across and 15 down did not have the same number of letters.
4. ‘Silence’, which was not the third word to be inserted, was the answer to an across clue.
5. ‘Barely’ was the first word to be entered in the grid, but ‘Badshah’ was not the second answer to be found.
6. Elsie’s word was longer than Bineet’s; Sheela was neither the first nor the last to come up with an answer.
7. Fifth one to be worked out was an answer to an across clue.