Eric Nicholas K's answer to Shan Kuek's Secondary 4 E Maths Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
For part c, I used only my eye power to make an estimate of the value; I can’t actually read off the best value (which I suspect is 75.5 since the cutting is 3/4 way between 74 and 76).