AC Lim's answer to Gwen Beatrice's Primary 6 Maths Data Analysis Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
AC Lim
Ac Lim's answer
13108 answers (A Helpful Person)
Part a your answer is correct.
Part b, use guess and check method.
Hope this help