In spite of offering 20% discount on watch priced at rspees 300, a shopkeeper gains 20% what is the cost price of the watch
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Answer:
Rs.200
Step-by-step explanation:
Marked Price (MP) of watch = Rs.300
Discount = 20% = 20/100 × 300 = Rs.60
Selling Price (SP) = Rs.(300-60) = Rs.240
Gain = 20%
=> (100+20)% of CP = SP
=> 120% of CP = 240
=> 120/100 × CP = 240
=> CP = 240 × 5/6
=> CP = Rs.200
ashashetty84:
why we want to do 5/6
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