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Number System Questions for RRB NTPC

Free, AI-curated practice for the Number System section of RRB NTPC. We have 29+ verified questions in this bank. Below: 5 sample questions. Sign up free to unlock unlimited practice + AI explanations + per-topic analytics.

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📍 Number System is also tested in:
SSC CHSL (29)SSC MTS (28)SSC GD (15)RRB GROUP D (15)

Sample questions

Q1 · easy · AI-verified
Find the number of factors of 60.
  1. 16
  2. 10
  3. 12
  4. 8
Q2 · easy · AI-verified
What is the sum of all natural numbers from 1 to 50?
  1. 1275
  2. 1225
  3. 1300
  4. 1250
Q3 · easy · AI-verified
Find the unit digit of 7¹⁵.
  1. 9
  2. 3
  3. 7
  4. 1
Q4 · easy · AI-verified
What is the average of 8, 12, 16, and 20?
  1. 12
  2. 14
  3. 16
  4. 18
Q5 · easy · AI-verified
What is 2⁴?
  1. 8
  2. 12
  3. 16
  4. 24
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