RRB Exam : Practice Set
Q. A fruit seller bought 150 mangoes. He sold them at such a price that the selling price (SP) of 120 mangoes was equal to the cost price (CP) of 150 mangoes. Find his profit percentage.
Options: (A) 25% (B) 35% (C) 30% (D) 20%
Solution - Ratio Method
Given: SP of 120 mangoes = CP of 150 mangoes
Therefore, CP : SP = 120 : 150 = 4 : 5
Profit = SP − CP = 5 − 4 = 1
Profit percentage:
Profit% = Profit / CP×100 = 1/4 × 100 = 25%
Short Trick
CP : SP = 4 : 5
So,
Profit = 5 − 4 = 1
Profit% = 1/4 × 100 = 25%
Ans: (A) 25%
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Q. A shopkeeper bought 200 articles. He sold them in such a way that the selling price of 160 articles was equal to the cost price of 200 articles. What is his profit percentage ?
Options: (A) 20% (B) 25% (C) 30% (D) 15%
Solution - Ratio Method
Given: SP of 160 articles = CP of 200 articles
Therefore,CP : SP = 160 : 200 = 4:5
Now, Profit = SP − CP = 5 − 4 = 1
Profit percentage:
Trick
CP : SP = 160 : 200 = 4 : 5
Profit% = 5 − 4/4 × 100 = 25%
Ans: (B) 25%
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PRACTICE SET
Profit & Loss | Ratio Method
Q1. A shopkeeper bought 300 articles. He sold them in such a way that the 240 articles' SP was equal to the 300 articles' CP. Find his profit percentage.
(A) 20% (B) 25% (C) 30% (D) 15%
Q2. A fruit seller bought 250 oranges. The 200 oranges' SP was equal to the 250 oranges' CP. Find his profit percentage.
(A) 20% (B) 25% (C) 30% (D) 15%
Q3. A trader bought 400 articles. He sold them at a price where the 320 articles' SP was equal to the 400 articles' CP. Find his profit percentage.
(A) 20% (B) 25% (C) 30% (D) 40%
Q4. A shopkeeper bought 500 items. The 400 items' SP was equal to the 500 items' CP. Find his profit percentage.
(A) 15% (B) 20% (C) 25% (D) 30%
Q5. A fruit seller bought 600 apples. The 480 apples' SP was equal to the 600 apples' CP. Find his profit percentage.
(A) 20% (B) 25% (C) 30% (D) 35%