SSC GD Constable Premium Mock Test 02 – Question 53

Question:

Number decreased by 15% then increased by 20% is 78 more than original. Find number.

संख्या को पहले 15% घटाया फिर 20% बढ़ाया। संख्या 78 अधिक हो गई। मूल संख्या ज्ञात कीजिए।

Options:

  • 2600
  • 5200
  • 4500
  • 3900
  • 2600
  • 5200
  • 4500
  • 3900

Correct Answer: Option D

Explanation:

Detailed Explanation: x = 3900.

विस्तृत व्याख्या: 1.02x – x = 0.02x = 78 → x = 3900.

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