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3/4(1+1/3)(1+2/3)(1-2/5)(1+6/7)(1-(12)/(...

`3/4(1+1/3)(1+2/3)(1-2/5)(1+6/7)(1-(12)/(13))=?` `1/5` (b) `1/6` (c) `1/7` (d) None of these

A

`2/13`

B

`1/7`

C

`1/6`

D

`1/5`

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CHAMPION PUBLICATION-2010 TIER-II PAPER(24)-EXERCISE
  1. If 2x + (1)/( 3x ) = 6, then 3x + (1)/(2x) is equal to

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  2. If x = (sqrt2-1 ) ^(-(1)/(2)) then the value of (x ^(2) - (1)/(x ^(2))...

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  3. 3/4(1+1/3)(1+2/3)(1-2/5)(1+6/7)(1-(12)/(13))=? 1/5 (b) 1/6 (c) 1/7 (d...

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  4. 10.Using suitable identity prove that: qquad ((0.87)^(3)+(0.13)^(3))/(...

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  5. If x^2+y^2-2x+6y+10=0 then the value of the (x^2+y^2) is -

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  6. The greatest among sqrt(7) - sqrt(5) , sqrt(5) - sqrt(3) , sqrt...

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  7. If x ^(1//3) + y ^(1//3) = z ^(1//3) then ( x + y - z) ^(3) + 27 xyz ...

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  8. If sqrt (7 sqrt (7 sqrt (7 sqrt (7)......)))= (343) ^( y-1) then y is ...

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  9. If a ^(2) = 2 then (a + 1) is equal to

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  10. The missing term in the sequence 2,3, 5, 7, 11, ... 17, 19 is अनुक्र...

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  11. Find the wrong number in the series: 8, 13, 21 32, 47, 63, 83.

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  12. When the price of a toy was increased by 20%,the number of toys sold w...

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  13. A person sold a table at a gain of 15% .Had he bought it for 25% less ...

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  14. A sells an article to B at a gain of 25% B sells it to C at a gain of ...

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  15. By selling an article for 21, a man lost such that the percentage loss...

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  16. Half of 100 articles were sold at a profit of 20% and the rest at a pr...

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  17. The marked price of a clock is 3200. It is to be sold at 2448 at two...

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  18. A dealer marks his goods 30% above his cost price and then allows 15% ...

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  19. A shopkeeper wishes to give 5% commission on the marked price of an ar...

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  20. Manvendra earns Rs. 15000 per month and spends 80% of it. Due to pay r...

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