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Placement Papers with Solutions

(#M40000719) TCS QUESTION Keep an EYE

If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.

(a) 40% (b) 55% (c) 35% (d) 30%

Asked In TCS Rajeev Singh (14 years ago)

Unsolved Read Solution (10)

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(#M40000718) TCS QUESTION Keep an EYE

2 oranges, 3 bananas and 4 apples cost Rs.15. 3 oranges, 2 bananas, and 1 apple costs Rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples?
(a) Rs10 (b) Rs15 (c) Rs20 (d) Rs25

Asked In TCS Rajeev Singh (14 years ago)

Solved YadeeshKumar Read Solution (5)

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(#M40000717) TCS QUESTION Keep an EYE

A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it returns to the bus stand.

(a) 11a.m (b) 12a.m (c) 10a.m (d) 10.30p.m

Solution

The question is not complete, it should also be given in the question that average speed of the bus is equal to the starting speed of the bus
if we make this correction then answer by RAJAT SHARMA given below is correct

the answer is 11 a.m. ..........
let the initial speed of bus is V.....so it takes time in going T1 = 27/V and speed increases 50 %, while returning so time taken T2 = 27/(1.5V) = 18/V and it stops for 30 mins i.e., (.5 hr),
therefore total time taken T =(27/V)+(18/V)+(.5).
then average speed, V = total dist. traveled / total time
i.e.,V=2*27/T on solving we get V = 18 mph
hence finally time taken while going = 1.5hr + staying time (.5hr.) + time in returning with increased speed of 27 mph (1hr.)
hence total time taken=3 hrs. hence 11a.m.

but if we use the initial speed (18 mph) as a given term, then answer given below by YADEESHKUMAR is correct
ans is a)11am
bus covers 27 miles with 18mph in= 27/18 = 1 hr. 30 min.
it waits at stand = 30min.
after this, speed of return increases by 50 % so 50 % of 18 mph = 9 mph
total speed of returning = 18+9 = 27 mph
then in return it takes 27/27 = 1hr.
thus total time in journey = 1+1.30+0.30 = 3hr
so it will come at 8+3hr=11am.

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Asked In TCS Rajeev Singh (14 years ago)

Solved Read Solution (1)

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(#M40000713) TCS QUESTION Keep an EYE

A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
a) 2.4 mph (b) 4 mph (c) 4.8 mph (d) 5 mph

Asked In TCS Rajeev Singh (14 years ago)

Solved Karthik Pandiyan Read Solution (6)

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(#M40000712) TCS QUESTION Keep an EYE

There are two water tanks A and B, A is much smaller than B. While water fills at the rate of one litre every hour in A, it gets filled up like 10, 20, 40, 80, 160... in tank B.( At the end of first hour, B has 10 litres , second hour it has 20, and so on). If tank B is 1/32 filled after 21 hours, what is the total duration required to fill it completely?

a) 26 hrs (b) 25 hrs (c) 5 hrs (d) 27 hrs

Asked In TCS Rajeev Singh (14 years ago)

Solved Sivabharathi Read Solution (9)

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(#M40000702) TCS QUESTION Keep an EYE

A manufacturer undertakes to supply 2000 pieces of a particular component at Rs.25 per piece. According to his estimates, even if 5% fail to pass the quality tests, then he will make a profit of 25%. However, as it turned out, 50% of the components were rejected. What is the loss to the manufacturer?

(a) Rs.12000 (b) Rs.13000 (c) Rs.14000 (d) Rs.15000

Asked In TCS Rajeev Singh (14 years ago)

Solved gopinath Read Solution (2)

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(#M40000694) TCS QUESTION TCS MATHS Puzzle Keep an EYE

A horse starts to chase a dog that has left the stable two hours earlier. The horse runs at an average speed of 2km/hr. It crosses a 10-metre road, two small ponds 3 metres deep, and finally runs along two small streets of 200 metres long. After traveling 6 hrs, 2hrs after sunset, it catches the dog. Compute the speed of the dog in Km/hr?
option
(a) 20
(b) 22
(c) 16.5
(d) 18.5

Asked In TCS Rajeev Singh (14 years ago)

Unsolved Read Solution (3)

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(#M40000693) TCS QUESTION Keep an EYE

Alok and Bhanu play the following min-max game. Given the expression
N = X - Y - Z

Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu
would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be....

Asked In TCS Som (14 years ago)

Unsolved Read Solution (1)

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(#M40000439) TCS QUESTION hand shakess Keep an EYE

36 people {a1, a2,...,a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3},....,{a35, a36}, {a36, a1}. Then size of the smallest set of people such that the rest have shaken hands with at least one person in the set is

Solution

Answer 12 is correct.
because if we take person a1 in the set then it will cover a36 and a2 for shaking hand.similarly if we take person a4 in the set then it will cover a5 and a3 for shaking hand and so on, so minimum 12 persons are required to make shake hand with rest of the people complete

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Asked In TCS Pradeep Kumar (14 years ago)

Solved Read Solution (8)

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(#M40000690) TCS QUESTION Keep an EYE

The fundamental theorem of arithmetic states that every natural number greater than 1 can be written as a unique product of prime numbers.now what is the smallest number by which 3380 must be divided in order to make it into a perfect square
option
a) 5
b) 4
c) 8
d) 6

Asked In TCS subhash kakani (14 years ago)

Unsolved Read Solution (4)

Is this Puzzle helpful?   (3)   (0) Submit Your Solution Arithmetic