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Find missing number. 77, 65, 53, 41, _?, 17

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Find missing number.

77, 65, 53, 41, _?, 17


1. 17
2. 29
3. 21
4. 19
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1 Answer

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Correct Answer - Option 2 : 29

Given:

77, 65, 53, 41, _?, 17

Calculation:

77, 65, 53, 41, _?, 17

⇒ 17 – 12 = 65

⇒ 65 – 12 = 53

⇒ 53 – 12 = 41 

⇒ 41 – 12 = 29 

⇒ 29 – 12 = 17

∴ The missing number is 29

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