Question

c1=15% c2=80% ms2=800g ms1=200g. c3=?

Answer 1

c = mdx100/ms

=> md = msxc%/100

md1 = 200x15/100 = 30 g

md2 = 80x800/100 = 640 g

ms.fin = ms1 + ms2 = 800 + 200 = 1000 g

md.fin = md1 + md2 = 30 + 640 = 670 g

=> c%.fin = md.fin x100 / ms.fin

=> c%.fin = 670 x 100 / 1000 = 67%