Patni
Patni Placement Question Paper
Sample Questions
1. Number of Weights needed for weighing 1 to 40 kgs? 27 9 3 1 ans : 4
2. Venn diagram problem venndiagram find the formulae. Ans. (AB+BC+CA)(A’+B’+C’)
3. a +2b=6,ab=4 2/a + 1/b=? ans : 3/2
4. Age of 4 persons given in a relation find smallest age? ans : meera
5. find floating point result (float)25/2, float(25/2), 25/(float)2 ,25/2 ans: 1 & 3
6. find equivalent *(*(s+x)+y) ==> s[x][y] ans : content of s[x][y]
7. find invalid statement : int a[3]
1. scanf("%d",a[2]);
2. scanf("%d",&a[2]);
3. scanf("%d",a);
4. all
ans : 1
8. One palindrome programme was given in recursion ans : pal(f++,t–)
9. main program:
i=foo(2) foo(int s)
{
if(!s)
return s;
else
{ int i=5; return i}
}
ans : 5
10. k=0 i=0j=1;
if(i0)&&(k=2) printf(k);
if(i0|| k=0)
printf(k)
ans: 2 2
11. cube is moulded as a sphere. find the ratio of cube of surface area of sphere to squareof surface area of cube. ans pi/6
12. Teacher in math=4 p6=3 kmistry=3 each can take 2 subject minimum teacher needed for school ans : 5
13. 3 vowels,4 consonents formulate string of 6 letters with a vowel in a string max no of string ? ans: 5040
14. binnary of .6875. 0.1011
15. man walks at speed of 8 km/h 300 mtrs length train crosses man in 30 sec from back, find speed of train ans: 44 km/hr
16. main()
{
char ch;
int count=0;
while((ch = getch() != ‘n’)
{
while (ch == ‘ ‘)
ch = getch();
while((ch!=’ ‘) && (ch!=’.'))
{
count++;
ch=getch();
}
}
ans : 11
17. Radius of a circle is 5cm , if we draw a rectangle of maximum size, what is the area of rectangle ans : 50 cmsq
18. main()
{
int i;
for(i=0;i<3;i++)
switch(i)
{
case 1: printf("%d",i);
case 2 : printf("%d",i);
default: printf("%d"i);
}
}
ans 011122
19. There r 3 boys 7 4 girls; Howmany ways they r arranged such that boys should be always together ???Ans: 240
20. If n…..; What is the max no that divides (Ans: 
21. A,B,C,D has values from 0 to 9…. What is D ? (Ans: 6)
22. A wodden piece taken which is in shape of Triangle , of 10 X 24 X 26 ; Then cut at some ….. which is rearranged
in rectangle format; so what is … (Ans: 5)
23. There r 5 numbers. The average is 25; the highest value excluded then average is 25, if the lowest is excluded the avg is ..Then average of remaining is ? (Ans: 30)
24. The square is cut such that the end point of one side is shown in fig.. This is repeated two times, what is the area ??
(Ans: 3.61)
25. The route problem… what is the shortest rout to p1 to p2… (There may be circle figure……) (Ans: From p1 to 0 & form 0 to p8)
26. Two motor cycles A & B are started from one point at 4 Kmph & 6 Kmph; After 45 min B starts returning , at what
time they will reach…. (Ans: 3.6 km)
27. All integer from 0 to 9, what is the smallest no perfectly devides; (Ans: c)
28. Some figure (Triangle in a rectangle)….. What is perimeter if triangle (Ans: 20)