-
alex.gellatly
- Master | Next Rank: 500 Posts
- Posts: 435
- Joined: Wed Nov 16, 2011 7:27 am•Followed by: 16 members
- Thanked: 48 times
(1/5)^m = 1/(5^m)
(1/4)^18 = 1/(4^18) = 1/(2^36)
Hence, (5^m)*(2^36) = 2*(10^35) = 2*(2^35)*(5^35) = (2^36)*(5^35)
Comparing the powers, m = 35
The correct answer is D.
