Question

Jyoti buys a gold jewellery which has 90%gold and the rest copper.She is given a bill which charges amount equivalent to100% of gold.she argues with seller about the discrepancy.who settles the bill accordingly.1. What is the ratio of gold and copper in the jewellery?​

Answer 1

Answer:

9:1

Explanation:

Answer 2

Answer:

9:1

Explanation:

Gold=90%

Copper =10%

Therefore the ratio of gold and copper is =

Percentage of gold/ percentage of copper

$= \frac{90 }{10} in \: simplest \: form \ \: \frac{9}{1}$

Hence the answer is 9:1