Thank you Anurag. The solution is awesome!
@Mitch: I kind of get excited when I see such challenging questions, and almost forget the plug-in concept! I should keep reminding myself about plug-in strategy when I get excited the next-time
Thank you.

Cheers,
Kunal

IMO the answer should be E New Hire = (University Grad) or (Son/Daughter of Employee) Fatima should fit into either of above options. If she were to be an University Grad, other option must be false. i.e; Her Father or Mother should not be working for Bennsoft. Since the passage mentions about her f...

Thank you so much GMATGuru!!

Cheers,
Kunal

Thank you Brent. 'Machine-days' concept similar to 'Man-days' helped me to understand!

Cheers,
Kunal

Thank you Brent. Appreciate your quick response.
Your answer reinforced my concept and now I know, I am thinking in right direction.
I will also check out your 'aside-notes' to make the concept crystal clear.

Cheers,
Kunal

Thank you Hemant and Tommy. Appreciate your help.

Cheers,
Kunal

f(x+y) = f(x) + f(y)

For which of the following functions is
f(x+y) = f(x) + f(y)
for all positive numbers x and y?

f(a) = a^2
f(a) = a+1
f(a) = squareroot(a)
f(a) = 2/a
f(a) = -3a

can anyone please explain me the above problem?

Thanks in advance,
Kunal

Smallest prime factor - tough one for me!

For every positive integer n, the function f(n) is defined as the product of all even integers from 2 to n, inclusive. If m is the smallest prime factor of f(100) + 1, then value of m is: between 2 and 10 between 10 and 20 between 20 and 30 between 30 and 40 greater than 40 Can someone please explai...