Q&A - PSLE Math

[ruyu]

mathsparks:

ruyu, you've posted this on psle maths. so pls do not repost anywhere else.


mods, thanks to move the above to psle maths

ahh the other question can do and i am sorry

[shemum]

Dear Maths Guru or any experts,


Please help to solve the below question.

All 43 pupils from a class were assigned to welcome visitors to a school function. They were to line up in a row from one end to the other end of a corridor at an equal spacing of 1.2m apart.
On the day of the function, 6 of the pupils did not turn up. As a result, the remaining pupils had to line up from one end to the other end of the corridor at a new equal spacing.
What was the new spacing between 2 pupils?

Thank you.

[Maths Monster]

delete

[shemum]

Wow! You are soooo efficient. Thank You

[ruyu]

shemum:

Dear Maths Guru or any experts,


Please help to solve the below question.

All 43 pupils from a class were assigned to welcome visitors to a school function. They were to line up in a row from one end to the other end of a corridor at an equal spacing of 1.2m apart.
On the day of the function, 6 of the pupils did not turn up. As a result, the remaining pupils had to line up from one end to the other end of the corridor at a new equal spacing.
What was the new spacing between 2 pupils?

Thank you.

bump

[kiasiparent]

This year's PSLE Maths should be quite easy. Every alternate year will be easy. :lol:

[verykiasu2010]

kiasiparent:

This year's PSLE Maths should be quite easy. Every alternate year will be easy. :lol:

like that very hard to score leh

[CoffeeCat]

kiasiparent:

This year's PSLE Maths should be quite easy. Every alternate year will be easy. :lol:

on the contrary I expect this year to be as difficult as the previous years. The psle maths has created an uproar for 3 consecutive years already. I am given the impression that moe is not going to reduce the difficulty level just because parents complain, perhaps that's why they decide to introduce calculators ( as a smokescreen I guess).
But we will only know whose guesses are right after psle. :lol:

[Tnsp]

Tap A flows at a rate of 2,100 ml/min while Tap B flows at a rate of 2,500 ml/min. Both taps were turned on at the same time to fill a tank with dimensions 50cm by 40cm by 30 cm. After 5 mins., the plug at the bottom of the tank is removed, with the two taps still running. If the water is drained at the rate of 600 ml/min, what is the water level 2 mins. after the plug is removed ?


[MGS Prelim 2008 Maths B2 Q47]

Key question: which is L, B and H ? The question did not specify.

Thanks !

[Tang]

Tnsp:

Tap A flows at a rate of 2,100 ml/min while Tap B flows at a rate of 2,500 ml/min. Both taps were turned on at the same time to fill a tank with dimensions 50cm by 40cm by 30 cm. After 5 mins., the plug at the bottom of the tank is removed, with the two taps still running. If the water is drained at the rate of 600 ml/min, what is the water level 2 mins. after the plug is removed ?


[MGS Prelim 2008 Maths B2 Q47]

Key question: which is L, B and H ? The question did not specify.

Thanks !

We were told to assume that the dimensions given are L, B and H. For your information please.