Math, asked by bibhishanjagtap9355, 1 year ago

An alloy of copper and bronze weight 50g. It contains 80% Copper. How much copper should be added to the alloy so that percentage of copper is increased to 90%?
A) 45 gm
B) 50 gm
C) 55 gm
D) 60 gm

Answers

Answered by Anonymous
0
100%...................50g

90%....................?



=(90×50)/100= 45g....ur ans
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