Dreamerz:

Hi I need help for these questions:


2)Mrs Lim's son helped her to type the page numbers of her new book. He noticed that different pages required different numbers of digits. He counted that there were a total of 675 digits. How many pages were there in the book?

thank you in advance!!

Hi!

2ECOND question:

1 - 9 -> 9 digits
10 - 99 -> 90 numbers -> 180 digits
Total -> 189 digits
Left -> 675 - 189 = 486 digits
Division -> 486/3 = 162
Pages -> 162 + 99 = 261

Best wishes!

Dreamerz:

Hi I need help for these questions:


1) Tap A can fill up an empty tank in 20 minutes and Tap B can empty it the full tank completely in 12 minutes. Both taps were turned on at the same when the tank is 1/2 filled. how long does it take for the tank to be completely emptied?

thank you in advance!!

Hi!

F1RST Question:

Difference->1/12 - 1/20 = 1/30 tank per min
Time -> 1/2 (Divide by) 1/30 = 15 min

Best regards!

Thanks atutor2001! :thankyou:

Hi all,


Need explanation for the following...

RGPS/SA1/P6/2010
Question 30:

http://www.flickr.com/photos/64113082@N03/6143567445/in/photostream
http://www.flickr.com/photos/64113082@N03/6143567451/in/photostream

My ans:3
Ans key:2

Many thanks!

ridcully:

P5G:

Please help.


Question 70)
Despite his attempts at solving the algebra equation, Juan failed.
Try ________.

Worksheet answer: Try as he did to solve the algebra equation, Juan failed.

My answer: Try many times at solving the algebra equation, Juan failed.

Is my answer acceptable?

TIA.

No. Your answer has no contrast.

Rgds
R

I agree with ridcully too... It sounds a little odd...

MathIzzzFun:

stary:

Thanks MathIzzzFun for your prompt reply!

u r welcome

cheers.

Thanks atutor2001 for your prompt explanation.

No problem! I’m glad to help!

ivanhoo99:

Pls help...


Ali is good ____ cooking
1)in
2)at

I eliminated the two other options....

Thx

Hi!
Ans: 2
Notes:
Good + at (strong collocation)
Weak + in (strong collocation)

Best Regards!

Need more activeness!!!