The population of sheep on an island is 170. The population of the sheep is expected to increase by 3% each year, what will the population of sheep be in 5 years time? [3 marks]
Information from question
Initial population: 170
Increase: 3% (=x1.03)
Years: 5
Method
Formula: initial value x increaseyears
170 x 1.035 = 197 sheep
Proof
170 x 1.03 = 175.1 (1st year)
175.1 x 1.03 = 180.35 (2nd year)
180.35 x 1.03 = 185.76 (3rd year)
185.76 x 1.03 = 191.34 (4th year)
191.34 x 1.03 = 197.08 (5th year)
So answer is 197 sheep
RP
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