For Q6: Metropolis = Metropolis (1927) (movie directed by Fritz Lang). Fritz = Fritz Lang; Luis = Luis Bunuel; Alfred = Alfred Hitchcock; Werner = Werner Herzog. All are famous directors.
for question 5 is the answer 3 bcos 2^k+1 = 2^4 which is not. divisor of 72 but it isnt answer A = 2 bcos 2^k+1 if k =2 is divisor of 72 bcos 2^2+1 = 72/2^3 = 9
For Q6:
Metropolis = Metropolis (1927) (movie directed by Fritz Lang).
Fritz = Fritz Lang;
Luis = Luis Bunuel;
Alfred = Alfred Hitchcock;
Werner = Werner Herzog.
All are famous directors.
Discussed here on GMAT Club: gmatclub.com/forum/m07-183751.html
for question 5
is the answer 3 bcos 2^k+1 = 2^4 which is not. divisor of 72
but it isnt answer A = 2 bcos 2^k+1 if k =2 is divisor of 72 bcos 2^2+1 = 72/2^3 = 9
Check Bunuel's explanation to this question here gmatclub.com/forum/for-the-positive-integers-a-b-and-k-a-k-b-means-that-a-k-143981.html#p1155800
I think Charles is down with a bad throat.