Mei Ping

Thanks,Adrian

This is AdrianNg's solution.. More visual.. Can scroll back and check

Thank you, Raymond. Ur solution is much easier to understand. I was given another assumption method solution, i.e. Assume all are adults, 24x16=384 384-184=200 200 / (16+9) = 8 24 - 8 = 16 I could not figure it out at all. Does the above solution make any sense to you? If so, wld appreciate you cld help me to understand. Thank you.

We may assume that all are adults. Amount collected if all are adults = 24*16 = 384 kg. Since there is a difference of 184 kg (amount collected by adults), we have 384 - 184 = 200 kg that needs to be collected by both adults and children. Since each pair of adult and child collects 16+9 = 25 kg, 200/25 = 8 pairs of adult and child. So, we know that we have 8 children and 24 - 8 = 16 adults. To check: Adults collected total of 16*16= 256 kg; children collected 8*9 = 72 kg; 256 -72 = 184 kg

Thank you Vei Li Soo & Lee AG :) I got it now.

Actually, it's the same concept as mine ☺

Thank you. You r the best!

the first sentence showed that Alan has $14 more than Betty. If Betty give Alan another $5, then Alan will have $14+2×$5＝$24 more than Betty. 1 unit ＝ $24 2 units ＝ $48 Betty's money ＝ $48 + $5 ＝ $53

Thanks.. The book solution some sort similar with Raymond Ng's..but Raymond's model is very clear...

My solution->. Kid confused ..LOL

My girl's working, using model drawing...

My solution is merely a visual illustration of what Zhong Shu Hao did ☺

Yup agreed.. But if u look at the solution in the book(given by my friend)..its very lenghty..and confusing... Thanks anyway... My model visual is very bad ->still learning...now pr3 stage.. LOL..

Why x 2 at $14 + 2x$5?

If you have $10 more than me now, how much will you have more than me if you give me $1? ☺

9

Let's say you have $20, I have $10. After you give me $1, you will have $__ while I will have $__. So you have $__ more than me. Pls fill in the blanks.

I got it. 8.

Thks!