Tan Weiqiang
Asked 8 years ago

SG chevron_right Primary 4 chevron_right Fractions

Lily had 2/3 as much money as Andrew. Afterr each of them spent $250, the amount of money Lily had left became 3/10 of the total amount of money both of them had left. (a) How much money did Andrew have at first? (b) How much must Andrew give to Lily so that they have the same amount of money in the end? This is a very common question at Primary 5 and 6. The trick is to understand that the 3 units before is equivalent to 12 units. From there, one can easily solve the question. Hope this helps!

Replies 0

Adrian Ng
Asked 8 years ago

SG chevron_right Primary 6 chevron_right Geometry

Making it visual...

Replies 0

Adrian Ng
Asked 8 years ago

SG chevron_right Primary 4 chevron_right Fractions

Making it visual...

Replies 3

Linda Chen-Foong

Thanks so much! 😊😊

5 years ago
Yap Michelle

This is how we did.

5 years ago
Linda Chen-Foong

Thanks both! 😊😊 my gal got it. ✌🏻️✌🏻

5 years ago

Adrian Ng
Asked 8 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Making it visual...

Replies 1

Wanna Teooh

Can I also suggest another, it's a constant total question: Jimmy: kelly : total = 3:1:4 (before) Jimmy : kelly : total = 4:7:11 (next day) Make the total the same since it is constant total (Before) = 33:11:44 (Next day) 16:28:44 We identify 28u-16u = 72 1u= 6 Jimmy : kelly = 198:66 Jimmy gave 1/10 to Kelly, so 198=9u of Jimmy at beginning 1u = 22 Jimmy:Kelly = 22x10 : 66-22 = 5:1

5 years ago

Tan Eng Hor
Asked 8 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Appreciate if someone can help. Thank you

Replies 5

Dushyant Kumar

5 years ago
Dushyant Kumar

Since distance is same can use ratio method

5 years ago
Tan Eng Hor

Thank you, Sir

5 years ago
Gek Poh

How yiu get ratio of time 2:5?

5 years ago
Tan Eng Hor

The distance for each trip is the same. Speed is inversely proportional to the time, hence 2:5

5 years ago