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What’s the largest known Prime Number?

MATH / By admin

A 282,589,933 - 3
B 282,589,933 - 1
C 282,589,933 - 5
D None of these

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Which Muslim scientist wrote first book on Algebra ?

MATH / By admin

A Al-Khwarizmi
B Ibn Sina
C Archimedes
D Euclid

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Haroon purchased 30 kg of wheat at the rate of Rs. 11.50 per kg and 20 kg of wheat at the rate of 14.25 per kg. He mixed the two and sold the mixture. Approximately what price per kg should be sell the mixture to make 30% profit?

MATH / By admin

A Rs. 14.80
B Rs. 15.40
C Rs. 15.60
D Rs. 16.30

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By mixing two brands of tea and selling the mixture at the rate of Rs. 177 per kg. a shopkeeper makes a profit of 18%. If to every 2 kg of one brand costing Rs. 200 per kg, 3 kg of the other brand is added, then how much per kg does the other brand cost?

MATH / By admin

A Rs. 110
B Rs. 120
C Rs. 140
D None of these

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A fair price shopkeeper takes 10% profit on his goods. He lost 20% goods during theft. His loss percent is:________?

MATH / By admin

A8
B10
C11
D12

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A sells a bicycle to B at a profit of 20%. B sells it to C at a profit of 25%. If C pays Rs. 225 for it, the cost price of the bicycle for A is:________?

MATH / By admin

A Rs. 110
B Rs. 120
C Rs. 125
D Rs. 150

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A manufacturer sells a pair of glasses to a wholesale dealer at a profit of 18%. The wholesaler sells the same to retailer at a profit of 20%. The retailer in turn sells them to a customer for Rs. 30.09, there by earning a profit of 25%. The cost price for the manufacturer is:________?

MATH / By admin

A Rs. 15
B Rs. 16
C Rs. 17
D Rs. 18

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A man buys an article for 10% less than its value and sells it for 10% more than its value. His gain or loss percent is:________?

MATH / By admin

A no profit, no loss
B 20% profit
C less than 20% profit
D more than 20% profit

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If 5% more is gained by selling an article for Rs. 350 than by selling it for Rs. 340, the cost of the article is:________?

MATH / By admin

A Rs. 50
B Rs. 160
C Rs. 200
D Rs. 225

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The cash difference between the selling prices of an article at a profit of 4% and 6% is Rs. 3. The ratio of the two selling prices is:__________?

MATH / By admin

A 51:52
B 52:53
C 51:53
D 52:55

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