Wow. What level is this pls?

Sorry is Sec 2.

Ok. I will continue to try to work it out. Hopefully some of the other members can help you out too. 😉

x should be divided by cube root of 5 since it is proportional to cube root of y. If x is proportional to the cube root of y, then if Y is divided by 5 in terms of value then x should proportionally be divided by cube root of 5. 9/ cube root of 5

This page should be renamed psle maths help

Nah, it's not for PSLE, and it could be solved the model method way, if one is inclined to do so. 😆 But I enjoy such questions. Brain training, though I'm not that good at them. 😀

Thanks so much

Thanks Mike Tan!

It is correct

Each unit for C has been subdivided into 2 units. 10/16 = 5/8

Yes I just realized it , thanks for ur help !

Can I ask is it tch specifically wants the class to solve this Q using model method? Cos I thought using equal fraction will be less time consuming.

Hi Jasmine Yeo, either model method or equal fraction method is acceptable

I always use equal fraction. Change to common numerator.

Ya, I agree with Mike.

Jasmine Yeo, for some students, it may be too abstract why the denominators are added and equated to 615. The visual Model Method helps them make sense of these steps. Ultimately we will want our students to work with the abstract (algebra) and MM is the bridge to get there. Once they understand and don't need the models they can be encouraged to work with fractions and explain their thinking (to ensure understanding).

The question is indirectly telling you that 2/5 of the red buttons is equal to 3/4 of the blue buttons. Try drawing this, then extend the model to show all the red and blue buttons. Should be able to carry on from here. If not, then I'll draw to show.

Do you still need help on these?

no, thank you.