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Shivam's 1 day work = 3/10 - (1/6+ 1/12) = 1/20 So Shivam will do this job in 20 days Alternate Method: R+A+S R A 10/3 6 12 LCM = 60 units Eff 18 : 10 : 5 So eff of S = 18 - (10+5) = 3 units So Shivam can do whole job in = 60/3 = 20 days
Abhijit buys an old scooter for Rs. 3700 and spends Rs. 300 on its repairs. If he sells the scooter for Rs. 5500, his gain percent is
A bought an article at 25% less of the marked price and sold it at 20% more than the marked price. Find the profit earned by him.