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এক বছরে কোনো শহরের জনসংখ্যাা 70,000 থেকে বৃদ্ধি পেয়ে 71,435 হলে , জনসংখ্যাা বৃদ্ধি র শতকরা হার কত ?
2.25%
2.15%
2.0%
2.05% Question ID : 4410091986673 Option 1 ID : 4410097824760 Option 2 ID : 4410097824759 Option 3 ID : 4410097824757 Option 4 ID : 4410097824758 Status : Answered Chosen Option : D
05% Question ID : 4410091986673 Option 1 ID : 4410097824760 Option 2 ID : 4410097824759 Option 3 ID : 4410097824757 Option 4 ID : 4410097824758 Status : Answered Chosen Option : D
Calculate the difference 1,435. Divide by 700 (removing two zeros from 70,000). 1435/700=14.35/7=2.05.
Initial population = 70,000, Final population = 71,435
Percentage Growth=(Initial ValueFinal Value−Initial Value)×100%
Calculate the difference 1,435. Divide by 700 (removing two zeros from 70,000). 1435/700=14.35/7=2.05.
Many students miscalculate the percentage by using the final population as the denominator instead of the initial population.
Calculate the increase in population
Subtract the initial population from the final population to find the absolute increase.
71435−70000=1435
Set up the percentage formula
The percentage increase is calculated relative to the starting population of 70,000.
700001435×100
Solve the division
Simplify the fraction by canceling the zeros and performing the division.
7001435=2.05%
D is correct because the calculated increase is 2.05%.
This type of base-calculation is fundamental for Profit and Loss, Interest calculations, and Data Interpretation sections.
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