Reasoning Questions for SSC and DSSSB Exams

Count read live from the question bank. Questions withdrawn for being wrong or unanswerable leave this page automatically.

Where these questions come from

We say this per subject because it decides how much the answer is worth. A question from a DSSSB paper carries DSSSB's own answer; a practice-pool question carries ours.

Topics covered

• Analogy and odd one out
• Coding-decoding
• Number and letter series
• Blood relations
• Direction sense
• Ranking and seating arrangement
• Statements, conclusions and decisions
• Venn diagrams, mirror images and figure problems

Solved reasoning questions

A few from the bank, with the answer and the working behind a toggle. Try them before you open the answer.

1. If all roses are flowers and some flowers are red, which of the following must be true?
   1. All roses are red
   2. Some roses are red
   3. Some flowers are roses
   4. All red things are roses
   Show answer and solution

   Answer: (C) Some flowers are roses

   This follows from the given statements using logical reasoning.
2. Complete the series: 2, 6, 12, 20, ?
   1. 28
   2. 30
   3. 32
   4. 36
   Show answer and solution

   Answer: (B) 30

   The pattern is n(n+1): 1x2=2, 2x3=6, 3x4=12, 4x5=20, 5x6=30
3. Unhappy : Sad :: Moisten : ?
   अप्रसन्न : दुखी :: नम : ?
   1. Deny
      अस्वीकृत
   2. Blunder
      चूक
   3. Drench
      सराबोर
   4. War
      युद्ध
   Show answer and solution

   Answer: (C) Drench
   सराबोर

   Unhappy and Sad are synonyms. Similarly, Moisten and Drench are synonyms.
   अप्रसन्न और दुखी पर्यायवाची हैं। इसी प्रकार, नम और सराबोर पर्यायवाची हैं।
4. 343 : 720 :: 512 : ?
   343 : 720 :: 512 : ?
   1. 643
   2. 729
   3. 100
   4. 990
   Show answer and solution

   Answer: (D) 990

   Logic: n^3 : (n+2)^3 - (n+2). Here 7^3 : 9^3 - 9. For 512 (8^3), it is 10^3 - 10 = 990.
   तर्क: n^3 : (n+2)^3 - (n+2). यहाँ 7^3 : 9^3 - 9. 512 (8^3) के लिए, यह 10^3 - 10 = 990 है।