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In Figure, If DE |\ | BC , then x equa...

In Figure, If `DE |\ | BC ,` then `x` equals. (a)6cm (b) 8cm (c) 10cm (d) 12.5

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In Figure, there are two concentric circles with centre O . P R and P Q S are tangents to the inner circle from point plying on the outer circle. If P R=7. 5 c m , then P S is equal to (a) 10cm (b) 12cm (c) 15cm (d) 18cm

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RD SHARMA ENGLISH-STATISTICS-All Questions
  1. If 7sin^2theta+3cos^2theta=4, show that tantheta=1/sqrt(3)

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  2. In Figure, D E || A C and D F || A E . Prove that (E F)/(B F)=(E C)/(...

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  3. In Figure, If DE |\ | BC , then x equals. (a)6cm (b) 8cm (c) 10cm ...

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  4. In Figure, the graph of a polynomial p(x) is shown. The number of zero...

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  5. If 35 is removed from the data: 30,34,35,36,37,38,39,40, then the m...

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  6. If ui=(xi-25)/(10),sumfi ui=20 ,sumfi=100 , then x = 23 (b) 24 (...

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  7. The mean of 1,3,4,5,7,4 is mdot The number 3,2,2,4,3,3,p have mean m-1...

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  8. The mean of n observations is X . If the first item is increased by...

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  9. The arithmetic mean of 1,2,3,...n is (a)(n+1)/2 (b) (n-1)/2 (c) n/...

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  10. During the medical check-up of 35 students of a class, their weights ...

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  11. Given that tantheta=1/(sqrt(3,)) the value of (cos e c^2theta-sec^2the...

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  12. If sin3theta=cos(theta-6^0), where (3theta)a n d(theta-6^0) are both...

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  13. For the following grouped frequency distribution find the mode: Class:...

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  14. Compute the value of mode for the following frequency distribution. Cl...

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  15. Find the value of x , if the mode of the following data is 25: 15,20,2...

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  16. Compute the mode for the following frequency distribution:

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  17. Draw a cumulative frequency curve and cumulative frequency polygon for...

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  18. Calculate the value of mode for the following frequency distribution: ...

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  19. Find the median of the following data: CLASS ; 0-10 , 10-20 ,...

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  20. Following is the age distribution of a group of students. Draw the c...

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