Originally 4271

A gardener bought 30 bags of tulip bulbs. Each bag contained bulbs of a different kind. The gardener wanted to have a colorful bed, so he took a bag of five bulbs from each. How many bulbs has he not yet planted when there were originally a dozen bulbs in each bag?

Correct answer:

x =  210

Step-by-step explanation:

$$\begin{gathered} a=12-5=7 \\ x=30\cdot a=30\cdot 7=210 \end{gathered}$$

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