doubling the radius will have a greater effect
v of cylinder=pi x square of radius x hieght
lets take an example,r=2,h=2
v=8pi
doubling the hieght,h=4
v=16pi ie twice the initial volume
doubling the radius,r=4
v=pi x 16 x 2
=32 pi ie four times the initial volume
therefore radius makes a bigger difference
185km?
Amount they were bussed
(300 - 70)/2
= 115
Amount they biked
115 + 70
=185
Isn't this a math question? Unless I am missing something?? o.O