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secondary 3 | E Maths
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secondary 3 chevron_right E Maths chevron_right Singapore

Problem sum

Date Posted: 2 years ago
Views: 323
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done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
teacher zhang
Teacher Zhang's answer
30 answers (A Helpful Person)
1st
t1+t2=total time
x=15km/h is the speed of wind
hope it helps:)
M
M
2 years ago
Thank you for the clear working