கொடுக்கப்பட்டுள்ள தொடரில் கேள்விக்குறியை (?) மாற்றும் எண்கள் எவை?

20, 30, 42, 56, ?, 90

This question was previously asked in
SSC JE Electrical 9 Oct 2023 Shift 3 Official Paper-I
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  1. 58
  2. 78
  3. 36
  4. 72

Answer (Detailed Solution Below)

Option 4 : 72
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இங்கு பின்பற்றப்படும் வடிவம்,

qImage664dca006f9d4f9083863105

எனவே, சரியான விடை "72".

Alternate methods

இங்கு பின்பற்றப்படும் வடிவம்,

4 x 5 = 20

5 x 6 = 30

6 x 7 = 42

7 x 8 = 56

8 x 9 = 72

9 x 10 = 90

 

"72".

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