Anyone can help on question 13

Ask Singapore Homework?

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

Primary 3 | Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question

Primary 3 Maths Singapore

Anyone can help on question 13

Date Posted: 5 years ago

Snell

5 years ago

before,
R : J = 1 ; 1

after,
R : J = 1 ; 5

R = u
J = 5u

u+30 = 5u-30
u = 15

ans: (1)

Susan Ang

5 years ago

Thank you snell

done {{ upvoteCount }} Upvotes

clear {{ downvoteCount * -1 }} Downvotes

Date Posted: 5 years ago