Railways Notes / Mathematics (Quantitative Aptitude)
RRB NTPC · Group D Preparation

Mathematics
(Quantitative Aptitude)

Number System, Arithmetic, and Geometry — core Quantitative Aptitude topics for RRB NTPC & Group D, with formulas and solved shortcuts. No PDF, no signup required.

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5 ChaptersFull topic coverage
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9
Number System & Simplification
Order of operations:Brackets →Of (powers/roots) →Division →Multiplication →Addition…
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10
Percentage, Profit & Loss
Percentage = (Value / Total) × 100
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11
Simple Interest & Compound Interest
SI = (P × R × T) / 100
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12
Time, Speed & Distance (including Trains)
Speed = Distance / Time
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13
Geometry & Mensuration
3, 4, 5 | 5, 12, 13 | 8, 15, 17 | 7, 24, 25 | 9, 40, 41
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