Unit test

It takes Andrew 720 seconds to take a shower. He spends an additional 420 seconds eating breakfast.

How many minutes does it take Andrew to take a shower and eat breakfast?

minutes

[Metric reference sheet]

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19 minutes

Step-by-step explanation:

We should know that: 1 minute = 60 seconds

∵ It takes Andrew 720 seconds to take a shower

converting to minutes ⇒∴ 720 seconds = 720/60 = 12 minutes

He spends an additional 420 seconds eating breakfast.

converting to minutes ⇒∴ 420 seconds = 420/60 = 7 minutes

So, The time taken for a shower and eat breakfast = 12 + 7 = 19 minutes