Bubbles takes 3 more minutes to solve each math problem than Boots. If Boots takes 15 minutes to solve 5 problems, how long will it take Bubbles to solve them?

40 minutes

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45 minutes

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24 minutes

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30 minutes

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Solution

The correct option is D 30 minutes
Detailed step-by-step solution:

Let us calculate the number of minutes Boots takes to solve each question.

How many minutes does Boots take to solve 5 problems?

Ans: 15 minutes

Write the multiplication equation with a letter as an unknown.

Ans: 5 $\times$ s = 15

Since 5 $\times$ 3 = 15, therefore, s = 3 minutes

Bubbles takes 3 more minutes to solve each problem than Boots.

No. of minutes Bubbles takes to solve one problem = 3 + 3 = 6 minutes

For 5 math problems, Bubbles will take 5 times 6 or 5 $\times$ 6 = 30 minutes.

Probing question:

WB:

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