during one year the population of a village increased by 5% and their next diminished by 5% .if at the end of the second year the population was 798 ,what was it at the beginning of the first year?please explain step by step
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Step-by-step explanation:
Let the size of population at the beginning =x
Then x×
100
105
×
100
95
=9975
⇒x=
105×95
9975×100×100
⇒x=
9975
9975×100×100
⇒x=10000
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