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Secondary 1 | Maths
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Clara
Anonymous

Secondary 1 chevron_right Maths chevron_right Singapore

I know this is not math but it has something to do with it so maybe you could help??

Date Posted: 4 years ago
Views: 229
snell
Snell
4 years ago
efficiency = 25% (given)

useful energy = 30 J

25% of total energy = 30 J
total energy = 30 x 4 = 120 J
Eric Nicholas K
Eric Nicholas K
4 years ago
Technically it's a maths question.

And yup, Snell's working is correct.

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Lim Yu Mu
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