Question

40 kg of an alloy of Iron and tin contains 50%Iron. How much iron must be melted to make an alloy containing 60% Iron?

Answer 1

Answer:

If 50% of Iron contains 40 kg of an alloy then 60% of Iron will contain 48 kg of alloy

Answer 2

Answer:

40kg contains 50% Iron, which is 20kg.

Step-by-step explanation:

40kg contains 50% iron and 50% tin.

60% Iron and 50% Tin will be 110%

40kg - 100%

x kg - 110%

x= 40×110/100 ------------> Direct Proportion

Therefore x=44kg