Tutor MathsGuru: Ask me for your burning Maths questions!

[tianzhu]

Ngserene617:

1. Zoe and Sean has $20 altogether.
Zoe has $4 more than Sean.
How much money does each of them have?

To Ngserene617

Good Morning

You may use MD.

1)Draw one box to show one unit for Zoe.Add another smaller box to it to represent 4.

2)Draw another box,same as Zoe in (1) to show one unit for Sean

3)2 units + 4 ----- 20

4) 1 unit ----- 8, therefore, Zoe -----12 and Sean ------8

Best wishes

[Yu Xuan]

Hi Tianzhu & Dharma


i was wrong! Learnt some new today.
Thank you for your time.

[tianzhu]

Yu Xuan:

Hi Tianzhu & Dharma


i was wrong! Learnt some new today.
Thank you for your time.

Hi Yu Xuan

You're welcome.

Best wishes

[Herbie]

Hi I have one qn


Town A and Town B were 240km apart. Sharon left Town A for Town B at 9am travelling at an average speed of 80km/h. Kim left Town A sometime later than Sharon and overtook her at 11am. Kim’s travelling speed was 90km/h

a. at what time did kim leave town A.

b. How much later did sharon arrive in Town B than Kim?

Tx

[CJM]

Harry painted 1/4 of a pole red and 1 2/3m of the pole blue. The rest of the pole was not painted. If the pole is 6m long, what was the length of the pole that was not painted.

[CJM]

Joseph has fewer than 60 cookies.

If he puts them into bags of 5 cookies, he will have 2 cookies left.
If he puts them into bags of 7 cookies, he will be short of 3 cookies.
How many cookies does he have ?

[Vanilla Cake]

CJM:

Harry painted 1/4 of a pole red and 1 2/3m of the pole blue. The rest of the pole was not painted. If the pole is 6m long, what was the length of the pole that was not painted.

3/4x6=4½
4½-1⅔=2⅚
Length of the pole that was not painted =2⅚m

CJM:

Joseph has fewer than 60 cookies.
If he puts them into bags of 5 cookies, he will have 2 cookies left.
If he puts them into bags of 7 cookies, he will be short of 3 cookies.
How many cookies does he have ?

5+2=7
7, 12, 17, 22, 27, 32
7-3=4
4, 11, 18, 25, 32
Number of cookies that Joseph has = 32

[CJM]

thank you, vanilla cake !

[Hifive]

Hi everyone


Need help on the following questions:

1) A class was fixing a puzzle of their photos. In the first hour, the ratio of the number of fixed pieces to unfixed pieces is 1:5. In the next hour, they fixed another 15 pieces of the puzzle. Finally, the number of fixed pieces became 60% of the unfixed pieces. How many pieces were there in the puzzle?


2) A piggy bank had some 20-cent and 50-cent coins. 2/3 of the number of 20-cent coins is equal to 5/6 of the number of 50-cent coins. If there is a total of 162 coins, find the total value of all the coins in the piggy bank.

Source : Catholic High SA2 2009 P5

Thanks in advance.

[Brenda10]

Hifive:

Hi everyone


Need help on the following questions:

2) A piggy bank had some 20-cent and 50-cent coins. 2/3 of the number of 20-cent coins is equal to 5/6 of the number of 50-cent coins. If there is a total of 162 coins, find the total value of all the coins in the piggy bank.

Source : Catholic High SA2 2009 P5

Thanks in advance.

Hi, This is Q16. DD working:

2/3 = 5/6

10/15 = 10/12 (Make it equal)

15 + 12 = 27

162 / 27 = 6

15 * 6 = 90 (# of 20 cents coins)
12 * 6 = 72 (# of 50 cents coins)

90 * 0.2 + 72 * 0.5 = $54

Thank you.