In a 60 gram alloy of gold and silver 80 of the alloy is gold What amount of gold is mixed so that g...........

Quantitative Aptitude (CDS) Mixture and Alligation

In a 60 gram alloy of gold and silver, 80% of the alloy is gold. What amount of gold is mixed so that gold becomes 95%?

150 gram

120 gram

180 gram

130 gram

80% of 60 =48 gram
Let x amount is mixed
(48+x/60+x ) 100 =95
(48+x) /60+x=95/100
48+x/60+x =19/20
960+20x =1140+19x
X=180 gram

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