The 41st woman had to bake 3×40 = 120 cookies to make up for the three fewer cookies the first 40 women baked. 120 × 41 = 4920

A belated Happy Hari Raya to you and your loved ones, Izam!

Xavier Sng..your working looks simple and easier to comprehend...thks..

Thanks Xavier Sng for the wishes..

Thank you, Izam. It is just me putting reasoning before method. Once the approach to the problem solving is done, I can choose the method to present it. You are fully capable of that too. :)

Thanks to both of you Xavier Sng and Izam Marwasi !! I just can't think of the steps after getting 120! Lol....

Thank you for the question, Casey. Not to worry, if you look closely enough at what our contributors do, you will start picking up the scent.

I can get it immediately when I saw your short and sweet answer! Izam had further provided the working required!

Izam is a powerhouse. She is absolutely indefatigable!

Tks very much Jason Oon!

My pleasure. The emphasis here is to understand the question and be able to draw the correct model. Once model is drawn correctly, the question is almost solved.

I am really weak in model.... 😅

Or you can think of it this way: Bag A + Bag C = 9.2 kg Bag A + Bag B = 7.06 kg Comparing above expressions, we can tell Bag A is common and by subtraction you can find out difference between bag C and B. Then you can find mass of bag B.

I manage to get 2.14.... after that... I was stuck! But no issue now! Tks a lot 😊

I can get 2.14. When we say 1.5 times the mass of bag b means that bag b is heavier .. sorry I don't get it...

Bag C - Bag B=1/2 Bag B. (9.2-7.06)kg x 2=Bag B's weight

Thanks all.m

Gek Poh, the question is saying that bag C is 1.5 times the mass of bag B. It means 2.14kg is 0.5 times of bag B. So, 2.14 x 2 = 4.28kg / 4280g

12x-4.55=8x+1.25

cool. can't draw in model.

Don't fret Roy. Join us and you will be able to draw models at the drop of the hat soon enough.

Really brilliant. Thank you guys!!

A pleasure to help. Regards

bagus

Terima Kasih.

why 9 units?

Consider three stacks of notes that are equal in numbers. The first two stacks are made up of $2-notes while the last is made up of $5-notes. Since each $2-note is worth two $1's, and each $5-note is worth five $1's, that is how the 9 units come about.

Grouping lah

thk.

Regards

Twice as much $2 than $5 therefore $9 is one set. $405 \ $9 , total there are 45 sets. 45 x $2 = $180

Well done. Mr Xie

The answer is 180

Thank u 👍