My maths watch question is in the attachment i am really stuck on this topic. Please can you help. Thanks

1 answer:

4 0

Answers:

$20.9\\34$

Working:

$\frac{19+19+20+20+20+21+22+22+22+22+23}{11} =20.90909091$

$\frac{19+19+20+20+20+21+22+22+22+22+23+x}{12}=22$

$19+19+20+20+20+21+22+22+22+22+23+x=264\\230+x=264\\x=34$

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