Years divisible by 4 but not by 100 are leap years All other
Solution
Considering Alloy 1, Alloy 356.0
Mg is 0.3 % & Si = 7 %, Remaining is Aluminium, Al = 100 - 0.3 - 7 = 92.7 %
So, to Create 100 tons of Alloy1,
Mg required = 0.3 ton,
Si required = 7 ton &
Al required = 92.7 ton
and, for producing 10,000 tons of alloy 1,
Mg required = 30 ton,
Si required = 700 ton &
Al required = 9270 ton
>>
Considering Alloy 2, Alloy 7005
Mg is 1.4 % & Zn = 4.5 %, Remaining is Aluminium, Al = 100 - 1.4 - 4.5 = 94.1 %
So, to Create 100 tons of Alloy2,
Mg required = 1.4 ton,
Zn required = 4.5 ton &
Al required = 94.1 ton
and, for producing 10,000 tons of alloy 2,
Mg required = 140 ton,
Zn required = 450 ton &
Al required = 9410 ton
>>
Considering Alloy 3, Alloy 7075
Cu = 1.6 %, Mg is 2.5 % & Zn = 5.6 %, Remaining is Aluminium, Al = 100 - 1.6 - 2.5 - 5.6 = 90.3 %
So, to Create 100 tons of Alloy3,
Cu required = 1.6 ton
Mg required = 2.5 ton,
Zn required = 5.6 ton &
Al required = 90.3 ton
and, for producing 10,000 tons of alloy 3,
Cu required = 160 ton
Mg required = 250 ton,
Zn required = 560 ton &
Al required = 9030 ton
>> So total raw material required is sum of raw material required in each alloy
=> Total Cu Required = 160 ton
=> Total Mg Required = 30 + 140 + 250 = 420 ton
=> Total Si Required = 700 ton
=> Total Zn Required = 450 + 560 = 1010 ton
=> Total Al Required = 9270 + 9410 + 9030 = 27710 ton ........ANSWER.......PART(a)..................
>> Part (b).
Zn costs $3000/ton
and total Zn required = 1010 ton
So, total cost = 3000*1010 = $3030*103 .......ANSWER.......PART(b)..................

