Mathematics, 14.07.2020 20:01 ajyoung3142005oztpya

The climbing centre organises a competition for climbers. Each climber has six attempts at climbing a 15-metre wall.
To qualify for the final a climber must have a mean time of less than 8 seconds.
Here are Oliver's times, in seconds, for his six attempts.
9.22
8.58
7.79
7.23
8.66
8.14
Does Oliver qualify for the final?
You must show your working.

Answers: 3

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The climbing centre organises a competition for climbers. Each climber has six attempts at climbing...

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