I should have posted the answers...(a) 18.4kg(b) 34.9kgI...

  1. 1,214 Posts.
    lightbulb Created with Sketch. 38
    I should have posted the answers...

    (a) 18.4kg
    (b) 34.9kg

    I basically want the method. Any takers?
 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.