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The probability that the birth day of 6 persons fall in exactly two different months.

Two curves y=x^2-6x+8 and y=-x^2+bx+c are in x-y plane.If maxima of one curve is minima of other curves, then what is the value of b?

x2-12x+k=0 has real roots. if|k|<15 how many integer values can k take

In how many ways can 4 married couples seat themselves around a circular table, if atleast one husband sits beside his wife.

I am purchased cat self study programme it it will come to my home or not

how to solve binary logic question ?

how to solve syllogism ?

What is the last digit of the number 537^1279089028?

Consider a triangle drawn on the x-y plane with its 3 vertices at (0,41),(41,0) and ( 0,0). The no. of points with integer co-ordinates inside the triangle are?(excluding all points on the boundary)

sum of all the four digit no. that can form with digits 012345 with repetition and
without repetition ....