Govt. Exams
Entrance Exams
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Topics in Placement Papers
In Java, which keyword is used to prevent inheritance?
Correct Answer:
C. final
EXPLANATION
The 'final' keyword prevents a class from being subclassed or inherited
Identify the error in: 'The team were playing good football yesterday.'
Correct Answer:
B. good football
EXPLANATION
'Good' should be 'well' when describing how something is done (adverb usage)
In a code, FAST = 6-1-19-20. How would SHORT be coded?
Correct Answer:
A. 19-8-15-18-20
EXPLANATION
Each letter is replaced by its position in alphabet (A=1, B=2... Z=26). SHORT = 19-8-15-18-20
If COMPUTER is coded as DPNQVUFS, how is REASONING coded?
Correct Answer:
B. SFBTPOJOH
EXPLANATION
Each letter is shifted by +1 in alphabet. REASONING becomes SFBTPOJOH
Which number should replace the question mark? 3, 5, 9, 17, 33, ?
Correct Answer:
A. 65
EXPLANATION
Pattern: 3×2-1=5, 5×2-1=9, 9×2-1=17, 17×2-1=33, 33×2-1=65
A, B, C, D are four friends. A is taller than B. C is taller than D. B is taller than D. Who is the shortest?
Correct Answer:
D. D
EXPLANATION
From statements: A > B > D and C > D. D is shorter than all others, so D is shortest
Look at this series: 2, 6, 12, 20, 30, ? What comes next?
Correct Answer:
B. 42
EXPLANATION
Pattern: 1×2, 2×3, 3×4, 4×5, 5×6, 6×7 = 42
If A : B = 2 : 3 and B : C = 4 : 5, what is A : B : C?
Correct Answer:
A. 8:12:15
EXPLANATION
A:B = 2:3 (multiply by 4) = 8:12. B:C = 4:5 (multiply by 3) = 12:15. So A:B:C = 8:12:15
A number is increased by 30% and then decreased by 20%. What is the net change?
Correct Answer:
B. 4% increase
EXPLANATION
Let number = 100. After 30% increase = 130. After 20% decrease = 130 × 0.80 = 104. Net change = 4% increase
If x^2 - 5x + 6 = 0, what are the values of x?
Correct Answer:
A. 2, 3
EXPLANATION
(x-2)(x-3) = 0, so x = 2 or x = 3
