AlgebraHardMaximum plants within a budget
Algebra practice question
A gardener has $170 to spend and buys 4 shrubs at $20 each. With the remaining money, what is the greatest number of $6 plants the gardener can buy?
Answer: 15
170 − 80 = 90, and 90 ÷ 6 = 15.
Common wrong answers
- If you answered 14
- 14 falls one short.
- If you answered 22
- 22 divides 170 by 6 after subtracting only one shrub.
- If you answered 28
- 28 divides 170 by 6, ignoring the shrubs.
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