Comprehension

Direction : Consider the following for the items that follow :  

The product of 5 consecutive terms of an AP is 229635. The first, second and fifth terms are in GP. 

What is the sum of all five terms? 

This question was previously asked in
NDA-II 2024 (Maths) Official Paper (Held On: 01 Sept, 2024)
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  1. 60
  2. 65
  3. 75
  4. 80

Answer (Detailed Solution Below)

Option 3 : 75
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Detailed Solution

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Explanation:

Putting the value of d in equation (ii), we get

⇒ 5 × 6 = 2a 

⇒ a = 15

Thus, The terms are 3, 9, 15, 21 and 27

So required sum = 3 + 9 + 15 + 21 + 27 = 75 

∴ Option (c) is correct

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