# Math Question Possibly involving algebra and precentages

**Question description**

Between 1980 and 1990, the population of deer in a national park increased by 40%. Between 1990 and 2000, the deer population increased by 20%. The deer population in 2000 was how many time greater than the deer population in 1980? I know the answer is 1.68 but I don't understand how to work it out. Can someone please explain it to me?

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