iMath | Community

Tjoa A Em

Asked 9 years ago

SG Primary 5 Number and Algebra

How to do this question 7E&7C?????

Replies 0

Tjoa A Em

Asked 9 years ago

SG Primary 5 Number and Algebra

Replies 7

Zhong Shu Hao

If 1 green ball is collected, how many red and blue balls are collected?

6 years ago

Zhong Shu Hao

Hence, for every 1 green ball collected, how many points is earned in total?

6 years ago

Zhong Shu Hao

Thus, how many green balls are collected? and how many red and blue coloured balls are collected?

6 years ago

Tjoa A Em

Zhong Shu Hao sorry trouble you. This question 7E the method is it same as yours?

6 years ago

Zhong Shu Hao

Correct :D

6 years ago

Zhong Shu Hao

But do you understand what you are doing in each step?

6 years ago

Tjoa A Em

Of course.But,do you know how to do 7C?thanks so much you help me solve the problem.:)

6 years ago

Tjoa A Em

Asked 9 years ago

SG Primary 5 Number and Algebra

Replies 8

Zhong Shu Hao

Price of plate to cup is 3:2. A plate costs $3 more than a cup. So how much does a plate and cup costs respectively?

6 years ago

Zhong Shu Hao

For every 3 plates sold, how many cups were sold? So how much is collected in total for every 3 plates sold? How many plates were sold then? Thus, find the total number of cups and plates sold.

6 years ago

Zhong Shu Hao

Given that the total number of plates and cups sold is 4/7 of the items, how much items is left?

6 years ago

Tjoa A Em

Step A the answer correct, but step B how to do ?can are you help. Because I see so long questions very headache. :)

6 years ago

Zhong Shu Hao

$27 is not the answer for part a...

6 years ago

Tjoa A Em

Oh...oh

6 years ago

Zhong Shu Hao

for every 3 plates sold, Amount earned = 3x$9 + 5x$6 = $57 Total amount collected = $2850 $2850/$57 = 50 Number of plates sold = 50 x 3 = 150 Number of items sold = 50 x 8 = 400 Total number of items = 400/ (4/7) = 700.

6 years ago

Tjoa A Em

The working is so long made me dizzy. Thanks Zhong Shu Hao:)

6 years ago

Tan Weiqiang

Asked 9 years ago

SG Primary 3 Number and Algebra

Today I will share a question that is very common at Primary 3. Understanding the approach and the concept behind this question is very important because this forms the basics upon which more concepts will be built on.Hope it helps!