RRB NTPC Mathematics item 25: Find 15+8.
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Correct Answer: B. 23
Explanation:
15+8=23.
MCQ Collection
RRB NTPC Mathematics MCQs
Practice RRB NTPC Mathematics questions with answers and explanations.
RRB NTPC Mathematics item 26: Find 16×9.
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Correct Answer: A. 144
Explanation:
16×9=144.
RRB NTPC Mathematics item 27: Compute 17÷10, rounded to two decimals.
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Correct Answer: C. 1.7
Explanation:
17/10=1.7.
RRB NTPC Mathematics item 28: A value rises from 72 to 90. What is the percentage increase?
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Correct Answer: C. 25
Explanation:
Increase/base×100=25%.
RRB NTPC Mathematics item 29: A rectangle has length 19 cm and breadth 3 cm. Find its area.
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Correct Answer: C. 57
Explanation:
Area=57 cm².
RRB NTPC Mathematics item 30: Find the mean of 20 and 4.
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Correct Answer: C. 12.0
Explanation:
Mean=12.0.
RRB NTPC Mathematics item 16: A value rises from 92 to 115. What is the percentage increase?
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Correct Answer: A. 25
Explanation:
Increase/base×100=25%.
RRB NTPC Mathematics item 17: A rectangle has length 24 cm and breadth 9 cm. Find its area.
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Correct Answer: B. 216
Explanation:
Area=216 cm².
RRB NTPC Mathematics item 5: A rectangle has length 12 cm and breadth 6 cm. Find its area.
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Correct Answer: B. 72
Explanation:
Area=72 cm².
RRB NTPC Mathematics item 6: Find the mean of 13 and 7.
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Correct Answer: B. 10.0
Explanation:
Mean=10.0.
RRB NTPC Mathematics item 7: Find 14+8.
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Correct Answer: C. 22
Explanation:
14+8=22.
RRB NTPC Mathematics item 8: Find 15×9.
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Correct Answer: D. 135
Explanation:
15×9=135.