Change: 2u 2u = 160 - 52 = 108 1u = 54

I also get 54. It's correct?

So 3 times r divide by 2 instead?

In the end, there are 3units of passengers while there were 1unit of passengers at first. This shows that there is an increase in the number of passengers by 2u. When 52 passengers alighted and 160 passengers boarded, this increases the number of passengers in the train by 108. Hence, 2units = 108, 1unit = 54. Hope that clarifies :)

Thanks

A pictorial representation to help with formulating the algebraic equation.

Thanks all!

Sorry... I misread... Thought you wanted algebraic method :P

Lol. No worries. So I assume another question I posted osi is down side by 2

Model should be like this

Spot on, Serene Koon.

Do you seek the solution or are you just checking if your answer is correct? Regards

To verify my son answer. If answer is incorrect, appreciate solution pls.

His answer is correct.

Thanks Xavier Sng for yr prompt reply.

Please don't mention it. Thank you

Tqsm

My pleasure!

Hi, cud u explain the model pls, thx

Mister Yeo's method is perfectly correct, but John read 60 pages by Friday instead of 90. Just a little glitch, no biggie. God knows I made more than my fair share of careless mistakes!

Thanks Xavier for spotting my careless mistake. Tough trying to remember the question and flip to note pad and solve it. 😀

No worries. Happens aplenty to the best of us. I will depend on you to help me spot mine in due course, so you owe me 😆

Can't wait. Haha.

I thank you in advance, Sir!

Mister Yeo, can you be so kind to teach me how you present your work here without snapping a photo? By now you should be well aware of my abysmal photographic skill. I am desperate!

I use my Samsung note to solve the question. Then do a screen capture.

Clever. Okay, I am hardly tech savvy so though there is a tablet somewhere in the house, I think I will just have to rough it out with the mark one eyeball.

Thx Xavier

Glad to have helped, but the main credit goes to Yeo See Yeong. Regards

Thx Mr Yeo

I thank you all instead. I grew up with algebra and have no idea what model is all about. So thank you for the various methods that I picked up in this forum and thank u for the questions so I can practice.

How to get 33u/90/14?

Sorry... something wrong with my phone. .. now can see th rest of the posts..... thanks..

Replacing with a more proportionate model as the previous was very out of scale.

Once again thank you for your help Xavier

The pleasure is mine, thank you. Do let me know if you need clarification with the solution. Regards.