Peaceful+Challenge

Please type your name and your problem below. 8 Joy will do the problems you type here on Monday. If you can't edit this page, you need to join the wiki. I will approve you shortly after you click join (the next time I check my eMail). Enjoy the mathematics!

Mr. Slosberg If 8-Peace has 3 more 7's than 8-Joy, and there are 15 7's in both classes combined, how many 7's in 8-Peace?

Rex Yiu The prices of Coca Cola and Pepsi are $4/L and $5/L respectively.Osmond had a party and bought a total of 8L of the two types of coke, and he paid a total price of $35.What are the volumes of each type of coke Osmond bought?

Suki Tsoi Julie and Kelly bought pens and pencils. Julie bought 2 pencils and 1 pen which cost 7 dollars. Kelly bought 3 pencils and 2 pen which cost 12 dollars. How much does a pen and a pencil cost respectively?

Cho Yin You bought 2 pens and 1 pencil for $12.50, Jonathan bought 3 pens and 2 pencils for $22.50, You found out that you paid 5 dollars less than the original price, and Jonathan paid 2 dollars more than the original price. How much does 4 pens and 32 pencils cost originally?

Bernard Tsui There is a half price sale at the Purple Dinosaur Factory, Rex bought two green glowsticks and one red lightstick for $149, Seanan bought five red lightsticks and nine green glowsticks for $678, find the original prices for the glowsticks and the light stick.

Julie Ng Charlotte and Suki bought some candies and chips. Charlotte bought 5 candies and 2 packs of chips which cost $15. Suki bought 6 candies and 4 packs of chips for $24. How much does each pack of chips and candy cost?

Seanan Lee Yee Nam and Joshua went to the park together. Yee Nam brought two packets of chips and four cans of soft drink whick cost a total of $42. Joshua brought twelve cans of soft drink and seven packs of chips which costs $131. Find the price of soft drink and chips respectively :-) <XDXD

Maggie Zhang You are going purchase a jar of red and blue marbles. A red marble and a blue marble cost $5 and $4 respectively. There is a total of 50 marbles in the jar. You gave $250 to the shop assistant and she gave you $20 for change. The amount of red marbles is 10 more than the blue marbles in the jar. How many red and blue marbles are there in the jar respectively?

Angus Leung There are 19 pandas in the Wolong national nature reserve, and 24 in Heishui River nature reserve. If there are 9 more female pandas than male pandas, how many female and male pandas are there in the two nature reserves combined?

Jennifer Chiu If Apollo gave Artemis 40 arrows, they would have the same amount of arrows. However, if Artemis gave Apollo 44 arrows, Apollo would have twice as many arrows as Artemis. How many arrows does each person have?

Jonathan Cheng Bon bought 3 apples, 5 pears, 10 oranges for 50 dollars. Joe bought 5 apples, 7 pears, 4 oranges for 43 dollars. Ling bought 2 apples, 9 pears, 3 oranges for 32 dollars. Find the cost of one apple, pear and orange. Round off to one decimal place if needed.

Pearl Leung hingis and guby go shopping. hingis buy29 packets of LVbags and 30boxes of Nike shoe. she use amount $29769.90. GUby buy 10 pactey of LV bads and 40 boxes of nike shoe. SHe use amount $34576.20. Find how much is one LV bags and Nike shoe.

Joan Leung Emily buys 3 z-phone and 2 earphone with $6027.2. Kelvin buys 5z-phone and 8 earphone with $15888.3. Find the cost of z-phone and earphone speratly.

Rachel Ma In the supermarket each duck costs $30 and each chicken costs $20. If John buy ducks and chickens with the number of 20. John pays $ 500. How much ducks and chickens did John buys?

Caroline Ho Sandy pays $46 for 2lunch boxes and a bottle of water, Tom pays $74 for 3lunch boxes and 2 bottle of water. How much do the lunch boxes and water cost each?