The population of a village is 12,000. If it increases by 10% the first year and decreases by 5% the next year, what is the population after 2 years?
The population of a village is 12,000. If it increases by 10% the first year and decreases by 5% the next year, what is the population after 2 years?
एक गाँव की जनसंख्या 12,000 हैं। यदि पहले वर्ष इसमें 10% की वृद्धि होती है और अगले वर्ष 5% की कमी होती है, तो 2 वर्ष बाद जनसंख्या क्या होगी?
Detailed Solution & Logic
Correct Answer:
12,540
= $\frac{12000}{10} $ =1200
first year increases =1200
Population after 1st year=12000+1200=13200
decreases by 5% the next year
$\frac {5 \times 13200} {100}$ = 660
Population after 2nd year=13200 - 660 = 12540
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