← General Intelligence and Reasoning

Missing Number — Questions with Solutions

1 solved Missing Number questions from General Intelligence and Reasoning, as asked in SSC CGL and other SSC exams. Read the answer and explanation below, then practise the full set in the practice section.

Practise this topic

Q1. Study the given pattern carefully and select the number that can replace the question mark (?) in it.<br>| 6 | 8 | 10 |<br>| 9 | 12 | 15 |<br>| 15 | 20 | ? |

दिए गए पैटर्न का ध्यानपूर्वक अध्ययन करें और उस संख्या का चयन करें जो इसमें प्रश्न चिह्न (?) को प्रतिस्थापित कर सकती है।<br>| 6 | 8 | 10 |<br>| 9 | 12 | 15 |<br>| 15 | 20 | ? |

  1. A. 25
  2. B. 30
  3. C. 20
  4. D. 35

Solution

In each row, the numbers are in the ratio 3:4:5. For the third row: $3 \times 5 = 15$, $4 \times 5 = 20$, so the next is $5 \times 5 = 25$.