Thanks, and same to you Synth.

I'm just wondering why you posted this on a math website...

Thanks Neptune,

What are your plans for thanksgiving this year?

And yes, I was reffering to the tube link

Yes, That was very good,

I did understand the explination,

thank you Melody

Yes, but it is not the exact math problem

Hello Thelastname

Welcome!!

Both Circles are the same size, the box is made of perfect 90° angles,

Here is an update, left something out

2400 x 85% =2,040 Kg -the weight of cement,sand and stone. 1/[1+2+5] x 2,040 =255 kg is cement. 2/[1+2+5] x 2,040 =510 kg is sand 5/[1+2+5] x 2,040 =1,275 kg is stone

Is exactly what I got....