16Hit1600
Advanced MathHardTwo years of 25% decline

Advanced Math practice question

A herd of 400 deer shrinks by 25% each year. How many deer will there be after 2 years?

Answer: 225

400 × 0.75² = 225.

Common wrong answers

If you answered 100
100 subtracts 75% at once.
If you answered 200
200 subtracts 100 twice, ignoring compounding.
If you answered 300
300 is after one year.

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