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primary 6 | Maths | Ratio
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Avrilia
Avrilia

primary 6 chevron_right Maths chevron_right Ratio

Pls help me thank you sir/mdm

Date Posted: 9 months ago
Views: 67
J
J
9 months ago
Ahmad at first: 8 units
David at first : 11 units

Difference = 11 - 8 = 3 units


Ahmad after giving away : 9 units
David after giving away : 14 units

Difference = 14 - 9 = 5 units

Since they gave away equal number of toy cars, their difference before giving away and after giving away is the same. So make the number of units the same.

5 x 3 = 15
3 x 5 = 15

So the difference is actually 15 units.


So actually, Ahmad at first
= 8 x 5 = 40 units

Ahmad after giving away
= 9 x 3 = 27 units

40 - 27 = 13

He gave away 13 units.

Percentage Ahmad gave away
= 13/40 x 100%
= 32.5%
Avrilia
Avrilia
9 months ago
Extremely clear and easy to understand sir. Thank you so much for your detail explanation
J
J
9 months ago
You are welcome!
Avrilia
Avrilia
9 months ago
Do you teach tuition for PSLE?
J
J
9 months ago
Yes I do.
Avrilia
Avrilia
9 months ago
How to contact you
Avrilia
Avrilia
9 months ago
Group tuition or 1 : 1. I am having PSLE this yr. My foundation is good except that I have problems with challenging questions. Where is yr place located?
J
J
9 months ago
1:1. You may leave your number here for me to contact you

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ᗩᒪ丅ᗴᖇᔕ丅ᗩᖇ
ᗩᒪ丅ᗴᖇᔕ丅ᗩᖇ's answer
52 answers (A Helpful Person)
1st
This is a constant difference question as they said that both gave away the same amount of toy cars