An electric bulb was bought at Rs. 4200 Its value depreciates at the rate of 8% per annum Its value after one year will be:

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RRB ALP CBT I 29 Aug 2018 Shift 1 Official Paper
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  1. Rs. 3,684
  2. Rs. 3,800
  3. Rs. 3,864
  4. Rs. 3,746

Answer (Detailed Solution Below)

Option 3 : Rs. 3,864
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Detailed Solution

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Calculation:

According to the question:

4200 × ( 100-8)/100

⇒ 42 × 92

⇒ 3,864

∴ Option 3 is the correct answer.

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