Question

$\huge \ \rm \ \underline \red{Quєѕтion}:$

During one year, the population of a town is increased by 5% and during the next year, the population decreased by 5%. of the total population is 9975 at the end of the second year, then what was the population in the beginning of the first year?

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Answer 1

Answer:

$\huge { \underline\red {\bf{Solution}}}$

Step-by-step explanation:

Let the size of population at the beginning = x

Then x × 105/100 × 95/100 = 9975

=> x = 9975×100×100 / 105×95

=> x = 9975×100×100 / 9975

=> x = 10000

The original population was 10000.

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Answer 2

Answer:

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Step-by-step explanation:

Let the size of population at the beginning  =x

Then x×100105×10095=9975

⇒x=105×959975×100×100

⇒x=99759975×100×100

⇒x=10000