Eric Nicholas K's answer to Shan Kuek's Secondary 3 A Maths Singapore question.

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Eric Nicholas K
Eric Nicholas K's answer
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Shan Kuek
Shan Kuek
4 years ago
How did u get =200? I don’t understand that part
Eric Nicholas K
Eric Nicholas K
4 years ago
Sorry, the first 200 I wrote wrongly, it’s supposed to be 25/2

The equation after that is a multiplication of the entire equation by 16 to eliminate all the denominators.

Remember that the right hand side also gets multiplied by 16, in which case 25/2 x 16 equals 200.