Math, asked by rajujagiri608, 1 month ago

A ornament weighs 45g.It is a mixture of gold and copper in the ratio 7:2.The weight of copper is______.

Answers

Answered by anishmishramaths

1

Answer:

10g

Step-by-step explanation:

let wt of gold and copper be 7x and 9x

then 7x+2x = 45g

hence x= 5g

hence wt if copper=2x=10g

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