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If the letters of the word PROBABILITY a...

If the letters of the word PROBABILITY are written down at random in a row, the probability that two B-s are together is

A

`2//11`

B

`10//11`

C

`3//11`

D

`6//11`

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2015-MULTIPLE CHOICE QUESTIONS
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  6. {x""inR":"|cosx|gesinx}cap[0,(3pi)/(2)]

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  7. The number of distinct real roots of |(sinx,cosx,cosx),(cosx,sinx,co...

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  8. Let x(1),x(2),.........x(15) be 15 distinct numbers chosen from 1,2,3,...

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  9. Let [x] denote the greatest integer less than or equal to x Then the v...

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  10. A particle starts moving from rest from a fixed point in a fixed direc...

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  11. lim(nto oo)(sqrt1+sqrt2+......+sqrt(n-1))/(nsqrtn)=

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  12. If lim(xto0)(axe^(x)-blog(1+x))/(x^(2))=3 then the values of a, b are ...

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  13. Area of the region bonuded by y=|x|andy=-|x|+2 is

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  14. Let d(n) denote the number of divisors of n inciuding 1 and iteslf . T...

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  15. The trigonometric equation sin^(-1)x=2sin^(-1)2a has a real solution i...

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  16. If 2+i and sqrt5-2i are the roots of the equation (x^(2)+ax+b)(x^(2)+c...

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  17. Let P(x) be a polynomial, which when divided by x-3 and x-5 leaves rem...

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  18. The integrating factor of the differential equation (dy)/(dx)+(3x^(2)t...

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  19. If y=e^(-x)cos2x then which of the following differential equations is...

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  20. Let f(x) denote the fractional part of a real numbers x. Then the valu...

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