Joshua Ignatius Koh Jun Min's answer to Kathy's Secondary 4 E Maths Singapore question.
Not correct.
Kathy, if is doubled, y decreases to 1/8 of its original value, so this is a decrease of the original value by 87.5%.
Let me know if you need me to write the working.
Kathy, if is doubled, y decreases to 1/8 of its original value, so this is a decrease of the original value by 87.5%.
Let me know if you need me to write the working.
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