Jasper Eng's answer to Nidia's Secondary 1 Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Jasper Eng
Jasper Eng's answer
86 answers (Tutor Details)
Let x be time taken by Kai:
Time taken by Chan = x + 0.25x
= 1.25x

Percentage of Kai to Chan
= x / 1.25x * 100%
= 80% NOT 75%

:. Disagree //