Question

50% of an alloy in copper 20% of it is nivkel and the rest is zinc in a cube this alloy if 75gm of zinc was used find the total weight

Answer 1

Step by step explanation:

May zinc be x and total weight be y.

50%+20%+x=y

70%+x=y

x=100%-70%=30%

Zinc= 30% of y=75 mg

30/100×y=75 mg

y= 75×100/30

Answer:

250