Blog Tag Trignometry

Question: A stationer buys pen at 5 for rs 28 and sells them at a profit of 25%. How much should a customer pay; if he buys only one pen and three pens?

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Question: A fruit seller sells 4 oranges for rs 3, gaining 50%. Find: c.p. of 4 oranges, c.p. of one orange, s.p. of one orange, profit made by selling one orange and number of oranges need to be bought and sold in order to gain rs 24.

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Question: A man sells 12 articles for rs 80 gaining 331/3%. Find the number of articles bought by the man for rs 90

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Question: The list price of an article is rs 800 and is available at a discount of 15 percent. Find: the selling price of the article; and the cost price of the article; if a profit of 131/3% is made on selling it.

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Question: An article is marked at rs 2,250. By selling it at a discount of 12%, the dealer makes a profit of 10%. Find: the selling price of the article and the cost price of the article for the dealer.

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Evaluate: 9^0+ 9^(-1)- 9^(-2)+ 9^(1/2)- 9^(-1/2)

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Simplify:(x^(a+b) )^(a-b) .(x^(b+c) )^(b-c) .(x^(c+a) )^(c-a)

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Simplify:?(5&x^20 y^(-10) z^5 ) ÷ x^3/y^3

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Simplify: (xy)^(m-n).(yz)^(n-l).(zx)^(l-m)

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Show that: (x^a/x^(-b) )^(a+b).(x^b/x^(-c) )^(b+c).(x^c/x^(-a) )^(c+a) = 1

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Evaluate: (x^(5+n) × (x^2 )^(3n+1))/x^(7n-2)

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Prove that: (x^a/x^b )^(1/ab).(x^b/x^c )^(1/bc).(x^c/x^a )^(1/ca) = 1

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Question: by selling an article at 20% discount, a shopkeeper gains 25%. If the selling price of the article is rs 1,440; find: the marked price of the article and the cost price of the article

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Question: A shopkeeper marks his goods at 30 percent above the cost price and then gives a discount of 10 percent. Find his gain percent

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Question: At 12% discount, the selling price of a pen is rs 13.20. Find its marked price. Also, find the new selling price of the pen, if it is sold at 5% discount.

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