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All MCQs
Browse exam-wise, subject-wise, and country-wise MCQs with explanations.
Choose an option to check your answer.
A.
60°
B.
30°
C.
90°
D.
120°
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Correct Answer: A. 60°
Explanation:
Each hour mark represents 30 degrees.
Choose an option to check your answer.
A.
Thursday
B.
Wednesday
C.
Friday
D.
Sunday
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Correct Answer: A. Thursday
Explanation:
One hundred leaves remainder 2 when divided by 7.
Choose an option to check your answer.
A.
2
B.
4
C.
3
D.
6
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Correct Answer: C. 3
Explanation:
Of the 6 possible orders, exactly half place A before B.
Choose an option to check your answer.
A.
20
B.
10
C.
30
D.
40
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Correct Answer: B. 10
Explanation:
Those liking at least one are 60 + 50 - 20 = 90.
Choose an option to check your answer.
A.
On
B.
Off
C.
It alternates too quickly to know
D.
The switch breaks
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Correct Answer: A. On
Explanation:
An odd number of presses changes the initial state to the opposite state.
Choose an option to check your answer.
A.
P, S, Q, R
B.
S, Q, P, R
C.
R, Q, P, S
D.
S, P, Q, R
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Correct Answer: D. S, P, Q, R
Explanation:
The constraints form a single chain S before P before Q before R.
Choose an option to check your answer.
A.
A and C selected
B.
B selected without A
C.
A selected without C
D.
B and C selected
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Correct Answer: C. A selected without C
Explanation:
The rule A → C requires C whenever A is chosen.
Choose an option to check your answer.
A.
The box labeled Apples
B.
The box labeled Mixed
C.
The box labeled Oranges
D.
Any box gives equal information
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Correct Answer: B. The box labeled Mixed
Explanation:
Because all labels are wrong, the Mixed-labeled box contains only one fruit type.
Choose an option to check your answer.
A.
Such a statement cannot be consistently made under the rule.
B.
He is definitely truthful.
C.
He is definitely a liar.
D.
Everyone else is lying.
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Correct Answer: A. Such a statement cannot be consistently made under the rule.
Explanation:
If he is truthful, the claim that he always lies is false; if he is a liar, the claim would be true.
Choose an option to check your answer.
A.
Statement II alone is sufficient.
B.
Both statements together are required.
C.
Even both statements together are insufficient.
D.
Statement I alone is sufficient.
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Correct Answer: D. Statement I alone is sufficient.
Explanation:
Only x = 0 has square equal to zero.
Choose an option to check your answer.
A.
Statement I alone is sufficient.
B.
Statement II alone is sufficient.
C.
Both statements together are sufficient, but neither alone is sufficient.
D.
Either statement alone is sufficient.
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Correct Answer: C. Both statements together are sufficient, but neither alone is sufficient.
Explanation:
A single rank does not reveal the total queue length.
Choose an option to check your answer.
A.
Statement II alone is sufficient.
B.
Statement I alone is sufficient.
C.
Both statements together are required.
D.
Even both statements together are insufficient.
Show Answer
Correct Answer: B. Statement I alone is sufficient.
Explanation:
The day after Monday is uniquely Tuesday.
