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xxMikexx [17]
2 years ago
15

A shopkeeper allows discount of 12% on the marked price of a certain article and makes a profit of 10%. if the article costs the

shopkeeper Rs.420. what price should be the marked price?​
Mathematics
1 answer:
romanna [79]2 years ago
8 0

Answer:

rs288

Step-by-step explanation:

MP of the article = 210×120100×10087.5= Rs.288210×120100×10087.5= Rs.288

Part of solved Discount questions and answers : >> Aptitude >> Discount

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Solution: The given problem is a binomial distribution.

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Therefore, the given problem follows binomial with n = 5 and p = 0.6667

Now the probability that 4 of 5 players selected are on scholarship is:

P(x=4) = \binom{5}{4} \times 0.6667^{4} (1-0.6667)^{5-4}

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Therefore, the probability that 4 of 5 players selected are on scholarship is 0.329

                 

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