sakurauiky's answer to Clair's Primary 6 Maths Data Analysis Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
30 min = 0.5 h
2 × 0.5×40÷(90-40) = 72
2 × 0.5×40÷(90-40) = 72
Date Posted:
1 year ago
Don't understand,cannot add up to 72
Printed equal number of poster