Q. Let $X = {1, 2, 3, 4, 5, 6, 7, 8, 9}$ . then total number of subsets of $X$ having atleast one and atmost eight elements is

150 177 Sets Report Error

A

510

0%

B

511

0%

C

255

0%

D

254

100%

Solution:

Subsets $= 2^{9} - 1 - 1 = 510$