Hazel Lee's answer to Gelene's Primary 6 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Hazel Lee
Hazel Lee's answer
2 answers (Tutor Details)
1st
# stands for "number"
B/t stands for between
A is the faster printer so B needs additional time to print the extras that A printed.