Can you share your local source of these questions ? Company X Company Y x+50 employees x employees 0.9y salary y salary we have to determine whether (x+50)* .9y > x*y or .9xy + 45 y > xy or 45 y > .1 xy or 450 > x (y not = 0) or company Y has less than 450 employees (A) INSUFF because it talks abou...

I agree with 4meonly. The answer should be (A)

we have to prove a-b+c >a+b-c
or 2c > 2b
c > b

if b is negative c is positive c > b

(C)

n items taken 1 time = n

n items taken 2 times where items can repeat is possible = n.n = n^2

so total permutation = n + n^2 + n^3 + ....

n(n^p-1)/(n-1)

total number of combination =3*2*3=18

day 1 = (3 X 1 (shoe #1) X3)/18= 9/18

day2 =(2X 1 (shoe#1) X2)/18 = 4/18

day 3 = 1 X 1 X 1/18 =1/18

same can happen with shoe #2

so probability = 2* (9/18)* (4/18)*(1/18)

=1/81

(B) is correct and "there" is an expletive that introduces the noun smoothly ... read a grammar book to know more about expletives.

100% (C)