Successive discounts of 10%, 20% and 50% will be equivalent to a

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 Multiple Choice QuestionsMultiple Choice Questions

81.

On selling 17 balls at ₹ 720, there is a loss equal to the cost price of 5 balls. The cost price (in ₹) of a ball is

  • 45

  • 50

  • 55

  • 55

152 Views

82.

Two items A and B are sold at a profit of 10% and 15% respectively. If the amount of profit received is the same, then the cost price of A and B may be

  • ₹ 1,000,  ₹ 1,500

  • ₹ 5,000,  ₹ 2,000

  • ₹ 3,000,  ₹ 2,000

  • ₹ 3,000,  ₹ 2,000

167 Views

83.

Sourav purchased 30 kg of rice at the rate of ₹ 10 per kg and 35 kg at the rate of ₹ 11 per kg. He mixed the two. At what price per kg (in ₹) should he sell the mixture to make a 30% profit in the transaction?

  • 12.5

  • 13

  • 13.7

  • 13.7

195 Views

84.

Gita buys a plot of land for ₹ 96,000. She sells 2 over 5 of it at a loss of 6%. She wants to make a profit of 10% on the whole transaction by selling the remaining land. The gain % on the remaining land is 

  • 20

  • 20 2 over 3
  • 14

  • 14

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85.

While selling, a businessman allows 40% discount on the marked price and there is a loss of 30%. If it is sold at the marked price, profit percent will be

  • 10%

  • 20%

  • 16 2 over 3 percent sign
  • 16 2 over 3 percent sign
180 Views

86.

By selling an article at 3 over 4 th of the marked price, there is a gain of 25%. The ratio of the marked price and the cost price is

  • 5 : 3

  • 3 : 5

  • 3 : 4

  • 3 : 4

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87.

Successive discounts of 10%, 20% and 50% will be equivalent to a single discount of

  • 36%

  • 64%

  • 80%

  • 80%


B.

64%

Formula for calculating successive discounts:
equals space open parentheses straight x plus straight y minus xy over 100 close parentheses percent sign
∴ Single equivalent discount for 10% and 20%
     equals space open parentheses 10 plus 20 minus fraction numerator 10 space cross times space 20 over denominator 100 end fraction close parentheses percent sign space equals space 28 percent sign
Single equivalent discount for 28% and 50%
      equals space open parentheses 50 plus 28 minus fraction numerator 50 space cross times space 28 over denominator 100 end fraction close parentheses percent sign
equals space left parenthesis 78 minus 14 right parenthesis percent sign space equals space 64 percent sign

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88.

A retailer offers the following discount schemes for buyers on an article.
I.   Two successive discounts of 10%
II.  A discount of 12% followed by a discount of 8%.
III. Successive discounts of 15% and 5%
IV. A discount of 20%.
The selling price will be minimum under the scheme.

  • I

  • II

  • III

  • III

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89.

By selling 100 oranges, a vendor gains the selling price of 20 oranges. His gain percent is

  • 20

  • 25

  • 30

  • 30

508 Views

90.

A man buys two chairs for a total cost of ₹ 900. By selling one for 4 over 5 of its cost and the other for 5 over 4 of its cost, he makes a profit of ₹ 90 on the whole transaction. The cost of the lower priced chair is

  • ₹ 360

  • ₹ 400

  • ₹ 420

  • ₹ 420

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