There are two alloys of A, B and C called ABC. The first alloy ABC1 is known to
contain 26 per cent of B and the second alloy ABC2 contain 40 percent of C. The
percentage of A is the same in both alloys. Having alloyed 300 kg of ABC2 and
500 kg of ABC1, we get a new alloy ABC3 that contain 30 percent of A. How many
kilograms of C is there in the new alloy ABC3?
a) 350 kg
b) 340 kg
c) 320 kg
d) 332 kg
Answers
Answered by
0
Answer:
FIRST ALLOY
1
st
Alloy 150kg is used.
40% is platinum in first alloy
100
40
×150=60kg of PLATINUM
SECOND ALLOY
2
nd
ALLOY 250kg is used
26% of silver =
100
26
×250=65kg
New alloy =150+250=400kg has 30% gold =
100
30
×400=120kg gold
since both contain same % of gold x% of 150 + x% of 250=120
100
x
×150+
100
x
×250=120
1.5x+2.5x=120
x=30%
In second alloy 100−(30+26)=44% of platinum is there
44% of 250 =
100
44
×250=110kg
In new Alloy Platinum is 110+60kg =170kg
Answered by
1
Answer:
350
Step-by-step explanation:
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