## Q&A - PSLE Math

- Nebbermind
- KiasuGrandMaster
**Posts:**16601**Joined:**Tue Dec 22,**Total Likes:**166

### Re: Q&A - PSLE Math

If the total distance is 1, A would be left with (3 2/3)/8 of the total distance.jwxh wrote:tks speedmaths.

why must (x10/8)? in order to get 10 hours?

If B takes 10 hrs to do the whole distance, he will need 10* (3 2/3)/8 hrs to do (3 2/3)/8 of the whole distance.

There you divide by 8 and then times 10.

- alfretztay
- KiasuGrandMaster
**Posts:**1199**Joined:**Sun Sep 12,**Total Likes:**5

### Re: Q&A - PSLE Math

Allow me to present an alternative method :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

For Car A,

8h -> 1 whole

1h -> 1/8

4 1/3h -> 1/8 x 13/3 = 13/24

1 - 13/24 = 11/24

For Car B,

1 whole -> 10h

11/24 -> 10 x 11/24h =

*4h 35 min*Ans :

**.**

*4h 35min*### Re: Q&A - PSLE Math

Hi everyone, need help on this question.. Dont really understand how to solve. Thanks in advance for any helps given. Thank you!

### Re: Q&A - PSLE Math

Try...belnanna wrote:Hi everyone, need help on this question.. Dont really understand how to solve. Thanks in advance for any helps given. Thank you!

u - the number of television sets

41+39+34u --> 36*(u+2)

80+34u --> 36u+36*2

(36-34)u --> 80-72

2u --> 8

u --> 4

There were 4 Television sets.

### Re: Q&A - PSLE Math

Thanks Ice watch! But is there any other ways to solve this ?Ice watch wrote:Try...belnanna wrote:Hi everyone, need help on this question.. Dont really understand how to solve. Thanks in advance for any helps given. Thank you!

u - the number of television sets

41+39+34u --> 36*(u+2)

80+34u --> 36u+36*2

(36-34)u --> 80-72

2u --> 8

u --> 4

There were 4 Television sets.

### Re: Q&A - PSLE Math

Thanks for the really clear explanation! Thanks Beautyful Minds! Have a beautiful Sunday !Beautyful Minds wrote:Hi Belnana,belnanna wrote:

Please click the link below for a detailed solution.

http://geniebookapp.com/public_question ... a71074032f

Do let us know if you have any doubts

Beautyful Minds