Answer / Vikas Kumar Singh

To create a 25% solution, we need to have 75% of the final volume as water and the remaining 25% as alcohol. We are given that the initial volume is 30 liters of alcohol, so if we let W be the amount of water needed, then 30 + W = 4 * 25 / 100. Solving for W, we find that W = (4/100) * 30 - 30 = 1.2 liters. So, 1.2 liters of water must be added.n

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2 Answers   Accenture,

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Alice and Bob play the following coins-on-a-stack game. 20 coins are stacked one above the other. One of them is a special (gold) coin and the rest are ordinary coins. The goal is to bring the gold coin to the top by repeatedly moving the topmost coin to another position in the stack. Alice starts and the players take turns. A turn consists of moving the coin on the top to a position i below the top coin (0 = i = 20). We will call this an i-move (thus a 0- move implies doing nothing). The proviso is that an i-move cannot be repeated; for example once a player makes a 2- move, on subsequent turns neither player can make a 2-move. If the gold coin happens to be on top when it's a player's turn then the player wins the game. Initially, the gold coinis the third coin from the top

7 Answers   TCS,

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One man brought pen and book from 250 and he sold both at 10% profit on pen and 20% loss on book and finally he gained 40% what is the value of pen

1 Answers   Celstream,

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A number when divided by D leaves a remainder of 8 and when divided by 3D leaves a remainder of 21 . What is the remainder left, when twice the number is divided by 3D?

5 Answers   TCS,

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Rajdhani Express starts from Delhi at 12:00 pm and reaches Chandigarh at 2:30 pm and Doronto Express starts from Chandigarh at 12:15 and reach at Delhi at 2:15 . What will be the time when both the trains will cross each other?

1 Answers   Cap Gemini,

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a person went to a shop and asked for change for 1.15paise. but he said that he could not only give change for one rupee. but also for 50p,25p,10p and 5p. what were the coins he had

1 Answers   Infosys,

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Four of the following five are alike in a certain way and hence form a group. Which one of the following does not belong to that group? (a) 63 (b) 64 (c) 39 (d) 48 (e) 79

6 Answers   Allianz,

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The difference between two numbers is 1365. When you divide the larger number with the smaller number the quotient is 6 and remainder is 15. What is the smaller number?

1 Answers   Canara Bank,

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for each hour an watch is going slow by 30 seconds now time is 8 a.m. what will be the actual time at 8 p.m.

4 Answers   Wipro,

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There are 600 tennis players 4% wear wrist band on one wrist Of the remaining, 25% wear wrist bands on both hands How many players don't wear a wrist band?

1 Answers   CTS,

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) A rope of given length is used to form a triangle of sides 23, 24, 34 cm. If the same rope is used to form a square, what would be the area of square?

7 Answers   TCS,

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chief : tribe :: governor :

1 Answers   IBM,

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