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Q. The distance of the point (3,8,2) from line (x-1)/2 = (y-3)/4 = (z-2)/3 measured parallel to the plane 3x+2y-2z+5=0 is

a) 2

b)3

c)5

d) none

please explain the method of solving!

can anybody please explain the shortcut to find the rank of a word in dictionary?

Q. find rank of AGAIN.

thanks

Q The probability that a teacher will give an unannounced test during any class meeting is 1/5. If the student is absent twice, the probability that he will miss atleast one test is

a)7/25

b)9/25

c)16/25

d)24/25

Q. One of the diagonals of a parallelopiped is 4j-8k. If the two diagonals of one of its faces are 6i+6k and 4j+2k, then its volume is

a) 60

b) 80

c) 100

d) 120

gud..

very nice!!!

hongkong

from chandigarh...

too good!!!!

P(A)=0.5

P(AB)0.3

P(AB)= P(A)+P(B)-P(AB)

If we take P(B)=0.9

then 0.3=0.5+0.9-P(AB)

i.e. P(AB)=1.1

which is not possible since probability cannot be more then1

so, P(B)0.9

i hope its right!!!!

its simply amazing!!!!!

since angle between a and b is acute, therefore a.b >0

(xi-3j-k).(2xi+xj-k)>0

2x²-3x+1>0

(2x-1) (x-1)>0

therefore, x <1/2 x>1 ...(i)

we are also given that angle between b and y-axis is obtuse

that is, (2xi+xj-k).j<0

x<0 ....(ii)

from (i) and (ii)

x<0 is d answer!!!!!