Multiple choice

For the past two years, it is observed that the population of a place is increasing by 10% per year. If the present population is 6171 the population two years ago was - पिछले दो वर्षो में यह देखा गया कि किसी जगह की जनसंख्या प्रतिवर्ष 10% बढ़ रही है। अगर वर्तमान जनसंख्या 6171 है तो दो वर्ष पहले जनसंख्या क्या थी ?

  1. 4000

  2. 4500

  3. 5000

  4. 5100

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Work backwards from present to past by reversing the compound growth. If population grew 10% each year for 2 years to reach 6171, divide by 1.10 twice: 6171 ÷ 1.21 = 5100. Answer D is correct.