Q1 of 62 Page 123

3/5 = (3/5 × 100) %


= (3 × 20) %


= 60%

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22

Find the percentage of pure gold in 22-carat gold, if 24-carat gold is 100% pure.

 23

The salary of an officer is increased by 25%. By what per cent should the new salary be decreased to restore the original salary?

 2

when expressed as a percentage, is

 3

when expressed as a percentage, is