The Timer has started 10:00
-
1)
An integer n is prime if, and only if, n > 1 and for all positive integers r and s, if n = r·s, then
- A) r = 1 or s = 1.
- B) r = 1 or s = 0.
- C) r = 2 or s = 3.
- D) None of these
-
2)
The method of loop invariants is used to prove correctness of a loop with respect to certain pre and post-conditions.
- A) True
- B) False
-
3)
The greatest common divisor of 27 and 72 is
- A) 27
- B) 9
- C) 1
- D) 3
-
4)
If a tree has 8 vertices then it has
- A) 6 edges
- B) 7 edges
- C) 9 edges
- D) 12 edges
-
5)
The value of 0! Is
- A) 1
- B) 0
- C) 11
- D) 15
-
6)
Two matrices are said to confirmable for multiplication if
- A) Both have same order
- B) Number of columns of 1st matrix is equal to number of rows in 2nd matrix
- C) Number of rows of 1st matrix is equal to number of columns in 2nd matrix
-
7)
The value of (n+1)!/(n-1)! is
- A) 0
- B) n(n-1)
- C) n^2 + n
- D) Cannot be determined
-
8)
If the order matters and repetition is not allowed then total number of ways for selecting k sample from n. is
- A) n^k
- B) C(n+k-1,k)
- C) P(n,k)
- D) C(n,k)
-
9)
+,-,X,÷ are
- A) Geometric expressions
- B) Arithmetic expressions
- C) Harmonic expressions
-
10)
The relation as a set of ordered pairs as shown in figure is
- A) {(a,b),(b,a),(b,d),(c,d)}
- B) {(a,b),(b,a),(a,c),(b,a),(c,c),(c,d)}
- C) {(a,b), (a,c), (b,a),(b,d), (c,c),(c,d)}
- D) {(a,b), (a,c), (b,a),(b,d),(c,d)}
