Find the missing number :

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This question was previously asked in
NIELIT Scientific Assistant CS 5 Dec 2021 Official Paper
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  1. 46 
  2. 15 
  3. 55 
  4. 32

Answer (Detailed Solution Below)

Option 3 : 55 
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Detailed Solution

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The logic followed here is:

Logic: Difference of left side number × Sum of right side number = Middle number.

For figure 1.

→ (15 - 5) × (2 + 6)

→ 10 × 8

→ 80 = middle number.

For figure 2

→ (12 - 6) × (4 + 5)

→ 6 × 9

→ 54 = middle number.

Similarly,

For figure 3

→ (18 - 7) × (3 + 2)

→ 11 × 5

→ 55 

Hence, the correct answer is "Option 3".

Latest NIELIT Scientific Assistant Updates

Last updated on Feb 20, 2025

-> A total number of 113 revised vacancies have been announced for the post of Scientific Assistant in Computer Science (CS), Information Technology (IT), and Electronics & Communication (EC) streams.

-> Online application form, last date has been extended up to from 17th April 2025.

->The NIELT has revised the Essential Qualifications for the post of Scientific Assistant. Candidates must possess (M.Sc.)/ (MS)/ (MCA) / (B.E.)/ (B.Tech) in relevant disciplines.

 

-> The NIELIT Scientific Assistant 2025 Notification has been released by the National Institute of Electronics and Information Technology (NIELIT).

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