67.8k views
18 votes
The fees for a computer course is increased from $ 30

to $ 36 per month. Find the percentage increase in
the fee
(a).15&%
(b).20%
(c).25%
(d).30%

1 Answer

10 votes

Given :-

  • Original price = $ 30
  • Increased price = $36


\\ \\

To find:-

  • Increased percentage


\\ \\

First let's find increase in price :-

  • Increase = Increased price - Original price
  • Increase = 36 - 30
  • Increase = $6


\\


\boxed{ \rm increase\% = (increase)/(original \: price) * 100 }


\\ \\

So:-


\\


\dashrightarrow \rm increase\% = \sf (increase)/(original \: price) * 100 \\


\\ \\


\dashrightarrow \rm increase\% = \sf (6)/(30) * 100 \\


\\ \\


\dashrightarrow \rm increase\% = \sf (6)/(3\cancel0) * 10\cancel0 \\


\\ \\


\dashrightarrow \rm increase\% = \sf (6)/(3) * 10 \\


\\ \\


\dashrightarrow \rm increase\% = \sf \cancel(6)/(3) * 10 \\


\\ \\


\dashrightarrow \rm increase\% = \sf 2* 10 \\


\\ \\


\dashrightarrow \bf increase\% = 20\%

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