Can someone help with these questions? Explanations appreciated. TIA


1. A shopkeeper sold 4 times as many water bottles as bags. The total amount he collected was $4056. He collected $936 more from the sale of the water bottles than from the sale of the bags. A water bottle cost $18 less than a bag. Find the cost of a bag.

2. A van left Town A and travelled towards Town B at a speed of 60km/h. Half an hour later, a car left Town A and travelled towards Town B. The car reached town B 45 minutes earlier than the van. When the car reached Town B, the van has completed 4/5 of the journey. Find the speed of the car.

I need help with this. It's under the topic of energy.


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Thank you

shann2:

Does anyone knows the model for this qn? Thanks :boogie:


There were as 3/5 many girls as boys on a bus. At the next bus stop, 6 girls and 5 boys boarded the bus. There were 3/4 as many girls as boys on the bus then. How many girls were on the bus at first?

Anyone knows how to do this? :xedfingers:

Does anyone knows the model for this qn? Thanks :boogie:


There were as 3/5 many girls as boys on a bus. At the next bus stop, 6 girls and 5 boys boarded the bus. There were 3/4 as many girls as boys on the bus then. How many girls were on the bus at first?

Thank you gonzo, MathIzzzFun & ttlkbs for your help.


I understand now

Hello! Need help with the following question. Would appreciate if there's a model. Thanks


Mei Mei had some 50-cent coins and Sandy had some 20-cent coins. Mei Mei had 6 fewer coins than Sandy. However, Sandy had $2.70 less than Mei Mei.
(a) How much money did Mei Mei have?
(b) How many 20-cent coins did Sandy have?

A packet of balloons is to be shared among a group of children. If each child gets 3 balloons, there will be 15 balloons left. If each child gets 4 balloons, there will be 20 balloons short.

(a) How many children are there altogether?
(b) How many balloons are there in the packet?

Please help, TIA.

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Please help thanks. Qn from 2011 Nan Hua SA1

Any kind soul who has the answer key for the book below and don't mind scanning/taking picture of it & sending to me? I lost it :?:


Upper Block Science Revision Workbook

Author: Renee Chong

Need help…


There are 20 pages in Samuel’s storybook. What is the total number of digits on all the page numbers?

Answer is given as 31…