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28. A shopkeeper, allows a discount of 20% and makes a profit of 20% on a transaction. By how much percent does the marked price exceed the cost price (calculate on the C.P)?

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let MP be 100.
so SP will be 80
now to earn 20% CP should be 66.666
so marked price is (100-66.66)/66.66 *100 percent above CP
ans = 50%
11 years agoHelpfull: Yes(14) No(0)

80% of S.P. = 120% of C.P.(80% because of 20% discount on Marked Price
120% because of 20% profit on Cost price)
Thus S.P.=150% of C.P.
11 years agoHelpfull: Yes(2) No(0)
the answer will be in percentage (100-66.66)/66.66=0.500=50% ANS
11 years agoHelpfull: Yes(1) No(0)
4x/5=120 where x=m.price
so,x=150 let (cp =100)
ans=50%
11 years agoHelpfull: Yes(1) No(0)

TCS Other Question

27. The total number of coins in a box consisting of only two types of coins (of denomination 1 Rupee and 2 Rupees ) is 140. If the total amount of money in the box is Rs. 162, then find the number of 1 Rupee coins in the box. 29. Nutritional facts about a certain amount of food are as follows : It was found that 33.33% of the weight considered was proteins, 20% of the weight was carbohydrates and 25% of the weight was minerals. If the amount of vitamins in the food is 260 grams, and there is no other nutrient than these in the food, then what is the total weight of the food ?