Aptitude Shortcut methods and tricks for the problems related to Age Calculation were given below to see. Candidates those who are preparing for all competitive Exams can use this method.:
Model Question:
1.) At What percent above the cost price must a shopkeeper mark his goods so that he gains 20% even after giving a discount of 10% on the market price?
Short-cut Methods:
Always take Cost Price and market price as 100%
From the above problem, he gains 20% from C.P and Gives 10% discount in M.P, for this case use this below format.
100% + 20% of C.P = 100% - 10% of M.P
Take C.P as ‘x’ and M.P as ‘y’.
120% x= 90%y
Subtract the C.P from the answer, 133.33- 100 = 33.33% So, if the shop keeper increases 33.33% from the C.P then he can get 20% of profit after giving 10% discount from the Market Price.
2). A Shopkeeper gains 40% from the cost price after giving 20% of discount from the market price, then at what percentage did he increase the C.P?
Short-cut Methods:
From the above problem, he gains 40% from C.P and Gives 20% discount in M.P, for this case use this below format.
100% + 40% of C.P = 100% - 20% of M.P
Take C.P as ‘x’ and M.P as ‘y’.
140% x= 80%y
Subtract the C.P from the answer, 175- 100 = 75% So, if the shop keeper increases 75% from the C.P then he can get 40% of profit after giving 20% discount from the Market Price.
