MCQ Collection
Japan MCQs
Practice Japan questions with answers and explanations.
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Correct Answer: C. 20.50
Explanation:
Mean = (18 + 19 + 8 + 37)/4 = 20.50.
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Correct Answer: D. 46
Explanation:
f(7)=6×7+4=46.
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Correct Answer: A. 3.8
Explanation:
10% of 38 = 3.8.
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Correct Answer: A. 260
Explanation:
Area = 13 × 20 = 260 cm².
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Correct Answer: D. 2/7
Explanation:
Probability = favourable outcomes ÷ total outcomes.
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Correct Answer: C. 15.75
Explanation:
Mean = (11 + 17 + 7 + 28)/4 = 15.75.
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Correct Answer: D. 33
Explanation:
f(7)=4×7+5=33.
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Correct Answer: A. 15
Explanation:
Use combinations: C(6,4) = 15.
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Correct Answer: A. 23
Explanation:
By Vieta’s formula, the sum of the roots is the coefficient of x with sign changed.
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Correct Answer: D. 49
Explanation:
f(7)=6×7+7=49.
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Correct Answer: D. 3.4
Explanation:
10% of 34 = 3.4.
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Correct Answer: A. 126
Explanation:
Area = 9 × 14 = 126 cm².
