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Question

(A) Let the third number be $100$.The first number is $20 \%$ less than the third number,so the first number $= 100 - 20 = 80$.The second number is $3

Vedclass · Accepted Answer

$87.5$

Vedclass · Answer

(A) Let the third number be $100$.The first number is $20 \%$ less than the third number,so the first number $= 100 - 20 = 80$.The second number is $30 \%$ less than the third number,so the second number $= 100 - 30 = 70$.We need to find the second number as a percentage of the first number.Required percentage $= (\frac{	ext{Second number}}{	ext{First number}}) 	imes 100$.Required percentage $= (\frac{70}{80}) 	imes 100 = 0.875 	imes 100 = 87.5 \%$.

Two numbers are respectively $20 \%$ and $30 \%$ less than a third number. What is the second number as a percentage of the first?

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