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Virtusa Placement Paper

1. A container has 64 lit of alcohol. 8 Lit of which is removed and added with same amt of water. The same process is repeated 3 times. What is the percentage of alcohol after the end of the operations.
Ans- formula - intial vol - p lit(64).
Vol of removed sol - q lit(8).
No of oprs - n(3).
Concentration of first liquid afetr oprts is - ((p-q)/p)**n.
((64-8)/64)**3.

2. A tank holds 25 gallons of fuel. Before going for a drive which is at a distance of 600 miles. The car goes at a speed of 60 miles per/ hr. However the tank has a hole and fuel leaks out . After travelling a distance of 300 miles, the tank gets emptied. Find rate at which fuel gets lost.

3. X+y+z=0, find the value of (x**3+y**3+z**3)/xyz.

4. 3 Men and 2boys can do piece of work in 12 days. Same work is done by 6men and 1 boy in 6 days. Find How many days can a man alone can complete the work?

5. In an exam the maximum marks is 500. A got 20% more than b, b got 25% less than c, c got 20% more than d. If b marks are 360 then How much did d score?

C Programming

1. Write a program / function to remove the duplicates from a sorted array.
2. Write a program to generate fibonacci series upto 100 recursively.
3. Predict the output of the following:

Char c[]={ " enter" , "first" , "print" , "new" }.;
char **cp[]={c+3, c+2, c+1, c};
char ***cpp[]=cp;
printf("%s", ++*cp);
printf("%s",--*++cp);