Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Question

secondary 4 | E Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Kathy
Kathy

secondary 4 chevron_right E Maths chevron_right Singapore

Part b

Date Posted: 6 years ago
Views: 301
Han Song
Han Song
6 years ago
m+n+mn = 90
m+n+mn+1 = 91
(m+1)(n+1) = 91
(7)(13) = 91

Therefore m = 6 & n = 12, m+n = 18

See 1 Answer

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Keith Lee
Keith Lee's answer
258 answers (Tutor Details)
1st
Hope this helps