Question

an alloy consists of 30% zinc 45% Nickel and the rest copper find the weight of copper in 800 gram of the alloy​

Answer 1

zinc + copper-100
_______________ × 800
100

=25
______ ×800 = 200gm
100

Answer 2

Answer:

copper is 308 g

Step-by-step explanation:

30% of the alloy is zinc

proportion of zinc=(800 x 30)/100

=240 g

out of the remaining 560 g, 45% is nickel

proportion of nickel=(560 x 45)/100

=252 g

rest is copper

hence 560-252=308 g