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A card from a pack of 52 cards is lost. ...

A card from a pack of 52 cards is lost. From the remaining cards of the pack, two cards are drawn and are found to be both diamonds. Find the probability of the lost card being a diamond.

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UNITED BOOK HOUSE-SET 17-EXERCISE
  1. Eleminating a and b, find the differential equation of all ellipse of ...

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  2. Evaluate : underset(x rarr 0) Lt (1+3x)^((x+2)/x)

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  3. If vec a, vec b, vec c are unit vectors satisfying the condition veca+...

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  4. Find the value of lambda so that the plane vecr. (veci + 2vecj + 3veck...

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  5. If P(A)=1/4,P(B)=1/3 and P(A-B)=1/6 then verify whether a and B are tw...

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  6. An unbiased coin is tossed 6 times. Find the probability of at least f...

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  7. Given A =[(1,-1,1),(1,-2,-2),(2,1,3)] & B = [(-4,4,4),(-7,1,3),(5 , -3...

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  8. Show that: |[a, b-c,c+b], [a+c, b, c-a],[a-b,b+a, c]|=(a+b+c)(a^2+b^2...

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  9. Show that int(2x+3)/(x^2 - 3x + 2) dx

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  10. If x = sin theta and y = cos ptheta , p is constant, then find the val...

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  11. The integral int(sec^2x)/((secx+tanx)^(9/2))dx equals (for some arbitr...

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  12. Show that int(2x+3)/(x^2 - 3x + 2) dx

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  13. If theta be the angle between two unit vectors vece1 and vece2 then pr...

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  14. Evaluate (with the help of definite integral) underset(nrarr infty) ...

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  15. Find the value of overset(pi//2)underset(0)int (1 )/((b^2 cos^2 x + a^...

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  16. A mawn takes a step forward with probability 0.4 and backward with pro...

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  17. A card from a pack of 52 cards is lost. From the remaining cards of ...

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  18. If the area of the region {(x , y):0lt=ylt=x^2+1,0lt=ylt=x+1,0lt=xlt=2...

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  19. (b)answer any two questions : (i) a circular ink blot grows at the rat...

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  20. Find the distance of the point (1,-2,3) from the plane x - y +z = 5 me...

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