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A shopkeeper bought a book for Rs 300. Due to the damage caused during transportation, he sold it for Rs 270. Find the loss percentage. (1) 10% (2) 15% (3) 30% (4) 20%

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babangamon

Answer:

10%

Step-by-step expla

loss percent = 100 - x

-------------- × 300= 270

100

multiply both sides by 100

100 - x

100 × -------------- × 300 = 270× 100

100

300( 100 - x) = 27000

30000 - 300x = 27000

30000 - 27000 = 300x

3000 = 300x

divide both sides of the equation by 300

3000 = 300x

-------- ----------

300 300

x = 10

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