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332 Aptitude Questions And Answers

303⟩ A motor cycle stunts man belonging to a fair, rides over the with vertical walls of a circular well at an average speed of 54 kph for 5 minutes. If the radius of the well is 5 meters then the distance travelled is a) 2.5 kmsb) 3.5 kmsc) 4.5 kmsd) 5.5 kmse) None of the above

c) 4.5 kms

54 kilometers per hours = 54000 meters per hour

54000 meters / 60 minutes = 900 meters per minute

900 meters * 5 minutes of traveling time = 4500 meters travel

4500 meters = 4.5 kilometers traveled in 5 minutes

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307⟩ Alok and Bhanu play the following min-max game. Given the expressionN = 9 + X + Y - Zwhere 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, What would be the value of N at the end of the game?

max=27

min=9

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308⟩ A cube has a side of 4cm.b The cube is painted red on all six side. This cube is then cut into 125 smaller cubes. How many of these smaller cubes will have only one side of their sides painted?

The 4cm cube is divide into 125 smaller cubes:

that means that the 4cm cube = 5 smaller cubes in height, width, and depth

Also, given that the 4cm is painted red on all six side:

- only those smaller cubes that touch no outer surface will be free of red paint, thus:

- 27 smaller cubes have no red paint on them

- 98 smaller cubes have some red paint on them

How many of these smaller cubes will have only one side of their sides painted?

- only those smaller cubes that do not touch the edges of the 4cm cube will have only one side painted, thus:

- 54 smaller cubes have only one side painted

- 36 smaller cubes have two sides painted

- 8 smaller cubes have three sides painted

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317⟩ The IT giant Tirnop has recently crossed a head count of 150000 and earnings of $7 billion. As one of the forerunners in the technologyfront, Tirnop continues to lead the way in products and services in India. At Tirnop, all programmers are equal in every respect. Theyreceive identical salaries ans also write code at the same rate.Suppose 12 such programmers take 12 minutes to write 12 lines of code intotal. How long will it take 72 programmers to write 72 lines of code in total?

The formula for this question is M1*D1*W2=M2*D2*W1

So putting all these values we get the answer to be 12 minutes

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