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primary 5 | Maths | Rate & Ratio
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primary 5 chevron_right Maths chevron_right Rate & Ratio chevron_right Singapore

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Date Posted: 4 years ago
Views: 355
snell
Snell
4 years ago
value
A's $2: 10u
SQ's $5: 10u

nos.
A's $2: 10u/2 = 5u
SQ's $5: 10u/5 = 2u


after SQ spent $60
value
A's $2: 10u
SQ's $5: 10u-60


nos.
A's $2: 5u
SQ's $5: 2u-12

5u x 6 = 25 x (2u - 12)
1u = 15

A has $150

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Wee Yun Han
Wee Yun Han's answer
9 answers (Tutor Details)
1st
Use ratio and write out the "before" and "after" scenarios step by step for easier reasoning