A student buys a book at 25% discount after reading the book he sells it for rs 900 thereby making a profit of 20%. What is the marked price of book?
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Step-by-step explanation:
profit=20%=360Rs
CP=100%1800Rs
SP= (120/100)*1800
SP= 2160Rs
SP= 75% of Marked price
75%=3/4
2160=(3/4)×MP
MP=2880
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