Population in Philippines is 90 million today and the yearly growth is 3.5%,How many years will it takes befo?

Question

population in Philippines is 90 million today and the yearly growth is 3.5%,How many years will it takes before the population is double?

Answer 1

use this formula :

90mill (1+ 3.5%)n-1 /180 x emc2 / f

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Answer 2

21 years,  I think. As the 21st term in the GP is 180.

TW K

Answer 3

it will be doubled in the 21st years

this is the population in each of the 21st years

93.15

96.41

99.78

103.28

106.89

110.63

114.51

118.51

122.66

126.95

131.40

136.00

140.76

145.68

150.78

156.06

161.52

167.17

173.03

179.08

185.35