See this http://www.kiasuparents.com/kiasu/forum ... 4#p1467204Whitearies wrote:There were some pies and cakes for sale in a pastry shop. 1/4 of the pastries were pies. The pastry chef then baked an equal number of pies.

A) will the percentage of cakes increase, decrease or remain the same?

B) what percentage of the pastries will be cakes?

## Q&A - PSLE Math

### Re: Q&A - PSLE Math

### Re: Q&A - PSLE Math

(1) 100C + 100T = 700Daddy wrote:

(2) 30C + 54T = 282

(1) x 3: 300C + 300T = 2100 ....... (3)

(2) x 10: 300C + 540T = 2820 ...... (4)

(4) - (3): 240T = 720

**T = 3**

100C + 100(3) = 700

100C = 400

**C = 4**

### Re: Q&A - PSLE Math

When they meet, John would have ridden T+1/2 hour,Daddy wrote:

while Ken had ridden T hour.

40T = 20 x (T + 1/2)

40T = 20T + 10

20T = 10

**T = 1/2 hour**

### Re: Q&A - PSLE Math

Car A and Car B travelled between Cape Town and Maxi Town. Car A took 8 hours to travel from Cape Town to Maxi Town while Car B took 10 hours to travel from Maxi Town to Cape Town. Both Car A and Car B left for their destination at the same time. After travelling for 4 1/3 hours, Car A stopped at a petrol kiosk. How long would Car B take to pass this petrol kiosk?

plse help. tks

plse help. tks

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- BrownBelt
**Posts:**559**Joined:**Mon Oct 12,**Total Likes:**3

### Re: Q&A - PSLE Math

Hi,jwxh wrote:Car A and Car B travelled between Cape Town and Maxi Town. Car A took 8 hours to travel from Cape Town to Maxi Town while Car B took 10 hours to travel from Maxi Town to Cape Town. Both Car A and Car B left for their destination at the same time. After travelling for 4 1/3 hours, Car A stopped at a petrol kiosk. How long would Car B take to pass this petrol kiosk?

plse help. tks

There are a few possible solutions.

One solution is to use ratios.

The answer is

**4 7/12 hours**.

Please let us know if you have any other questions.

Cheers

**Speed Maths**

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