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Finding Increase or Decrease Percentage in Situations

The price of ...

Question

The price of petrol decreased from $R s . 77.50$ by $4.8 %$ . What is the reduced price of petrol?

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Solution

$o r i g i n a l p r i c e = 77.50$
$d e c r e a s e p e r c e n t a g e = 4.8$
$r e d u c e d p r i c e = o r i g i n a l p r i c e - d e c r e a s e p e r c e n t a g e = 77.50 - 4.8$ $(77.50) = 77.50 - 372 / 100 = 77.50 - 3.72 = 73.78$

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