-
capnx
- Master | Next Rank: 500 Posts
- Posts: 268
- Joined: Sat Aug 15, 2009 9:22 am
- Thanked: 19 times
- Followed by:1 members
- GMAT Score:700
A circular rim 28inches in diameter rotates the same number of inches per second as a circular rim 35inches in diameter. If the smaller rim makes X revolutions per second, how many revolutions per minute does the larger rim make in terms of x?
48pi/x
75x
48x
24x
x/75
could someone please explain the formulas related to revolutions (rpm and rps)? is rpm = circumference/min?
thanks
48pi/x
75x
48x
24x
x/75
could someone please explain the formulas related to revolutions (rpm and rps)? is rpm = circumference/min?
thanks
