BBB Placement Paper - Logical And Programming Assistant

BBB Previous Years Solved Sample Placement Papers

1. If the radius of a circle is increased by 20% then the area is increased by:
   

   (A) 44%

   (B) 120%

   (C) 144%

   (D) 40%

   (E) None of the above

   (Ans: A)
2. If the area of two circles is in the ratio 169:196, then the ratio of their radii is:
   

   (A) 10:11

   (B) 11:12

   (C) 12:13

   (D) 13:14

   (E) None of the above

   (Ans: D)
3. A perfect cube is an integer whose cube root is an integer. For example, 27, 64, and 125 are perfect cubes. If p and q are perfect cubes, which of the following will not necessarily be a perfect cube?
   

   (A) 8p

   (B) pq

   (C) pq + 27

   (D) -p

   (E) (p - q)⁶

   (Ans: C)
4. Helpers are needed to prepare for the fete. Each helper can make either 2 large cakes or 35 small cakes per hour. The kitchen is available for 3 hours, and 20 large cakes and 700 small cakes are needed. How many helpers are required?
   

   (A) 10

   (B) 15

   (C) 20

   (D) 25

   (E) 30

   (Ans: A)
5. If f(x) = (x + 2) / (x - 2) for all integers except x=2, which of the following has the greatest value?
   

   (A) f(-1)

   (B) f(0)

   (C) f(1)

   (D) f(3)

   (E) f(4)

   (Ans: D)
6. What is the output of the following program?
   ```c void main() { char *mess[] = {"Have", "a", "nice", "day", "Bye"}; printf("%d \t %d", sizeof(mess), sizeof(mess[1])); } ```

   (a) 16 4

   (b) 5 4

   (c) 20 4

   (d) Error

   (Ans: C)
7. What is the output of the following program?
   ```c void main() { int i, count = 0; char *p1 = "abcdefghij"; char *p2 = "alcmenfoip"; for (i = 0; i <= strlen(p1); i++) { if (*p1++ == *p2++) count += 5; else count -= 3; } printf("count=%d\n", count); } ```

   (a) 15

   (b) 6

   (c) 12

   (d) Compiler error

   (Ans: B)
8. What does `main` return on successful execution?
   

   (a) 1

   (b) 0

   (c) -1

   (d) Nonzero

   (Ans: B)
9. How do you declare a pointer to an array of pointers to int?
   

   (a) int *a[5];

   (b) int **a[5];

   (c) int *(*a)[5];

   (d) You cannot declare

   (Ans: C)