I purchased a hair dryer for Rs. 5400 including 8% VAT. find the price before VAT was added.
Let the original price be x.
VAT =8% of original price
Now, Cost price = VAT + Original price
It is given that, CP of hair dryer after added VAT =Rs. 5400
⇒x+8 of x=5400
⇒x+8x100=5400
⇒108x100=5400
⇒x=5400×100108
⇒x=300×1006
⇒x=50×100
⇒x=5000
So the price of the hair dryer was Rs. 5000 before including vat.