Tan Yick Loong's answer to Nicole's Secondary 1 Maths Singapore question.
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With workings
Date Posted:
4 years ago
You should not be using a rounded off value of 0.0133 hour as this leads to a calculation error. Always strive to use more decimals or significant figures during intermediate workings to minimise rounding errors.
Correct is a perfect 60 km/h.
Speed in km/h
= 0.8 km / (0.8 / 60) h
= 60 km/h
Correct is a perfect 60 km/h.
Speed in km/h
= 0.8 km / (0.8 / 60) h
= 60 km/h
Agree. My bad, was trying to show the step by step method. Didn't occur to me that it would affect the ans. :)
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