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# Placement Questions & Answers :: Wipro

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Not Attempted

11. A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

Explanation:

Angle traced by hour hand in 12 hrs. = 360°

Angle traced by hour hand in 5 hrs 10 min.
=> 31/6 hrs = (360/12 * 31/6)º = 155º.

Tags: Wipro

Not Attempted

12. A can contains a mixture of two liquids A and B is the ratio 7 : 5. When 9 litres of mixture are drawn off and the can is filled with B, the ratio of A and B becomes 7 : 9. How many litres of liquid A was contained by the can initially?

Explanation:

Suppose the can initially contains 7x and 5x of mixtures A and B respectively.

Quantity of A in mixture left = (7x-7*9/12 ) Litres = (7x - 21/4) litres.

Quantity of B in mixture left = (5x - 5*9/12) Litres = (5x - 15/4) litres.

[(7x - 21/4)/ (5x-15/4)+9] = 7/9

=> (28x - 21)/(20x + 21) = 7/9

=> 252x - 189 = 140x + 147 => 112x = 336

=> x = 3.

So, can contained 21 litres of A.

Tags: Wipro

Not Attempted

13. A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:

Explanation:

Here is no explanation for this answer

Tags: Wipro

Not Attempted

14. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?

Explanation:

The word 'LEADING' has 7 different letters.

When the vowels EAI are always together, they can be supposed to form one letter.

Then, we have to arrange the letters LNDG (EAI).

Now, 5 (4 + 1 = 5) letters can be arranged in 5! = 120 ways.

The vowels (EAI) can be arranged among themselves in 3! = 6 ways.

Required number of ways = (120 x 6) = 720.

Tags: Wipro

Not Attempted

15. Sam purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. What was his percentage profit?

Explanation:

Cost Price of 1 toy = Rs. (375/12) = Rs. 31.25
Selling Price of 1 toy = Rs. 33
So, Gain = Rs. (33 - 31.25) = Rs. 1.75

Profit % = (1.75/31.25) x 100 % = 28/5 % = 5.6%

Tags: Wipro

Not Attempted

16. If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, what is the compound interest on the same at the same rate and for the same time?

Explanation:

Sum = Rs. (50 * 100)/(5*2) = Rs. 500.

Amount = Rs. [500 * (1 + 5/100)2]

= Rs. (500 * 21/20 * 21/20 )
= Rs. 551.25

C.I. = Rs. (551.25 - 500) = Rs. 51.25

Tags: Wipro

ShortCut
Not Attempted

17. 6 people A,B,C,D,E and F sit around a table for dinner. Since A does not like C, he doesn't sit either opposite or beside C.B and F always like to sit opposite each other.
If A is beside F then who is are the two neighbours of B?

Explanation:

Here is no explanation for this answer

ShortCut By :: Surabhi

As shown in this diagram , D and E are two neighbours of B.

Tags: Wipro

Not Attempted

18. 6 people A,B,C,D,E and F sit around a table for dinner. Since A does not like C, he doesn't sit either opposite or beside C.B and F always like to sit opposite each other.
If D is adjacent to F then who is adjacent to C?

Explanation:

Here is no explanation for this answer

Tags: Wipro

Not Attempted

19. Complete the sequence A, E ,I ,M ,Q ,U , _ , _

Explanation:

Here is no explanation for this answer

Tags: Wipro

Not Attempted

20. If