Friday, November 16, 2007

FIND NEW DISTANCE WITH SPEED CHANGE

You have steamed 916 miles at 13 knots, and consumed 166 tons offuel. If you have 203 tons of usable fuel remaining, how far can you steam at 14 knots?

A. 757 miles
B. 841 miles
C. 966 miles
D. 1108 miles

ANSWER ''C''

13 kts(2) x 916 mi x 203 tons divide by 14 kts (2) x 166 =

169 x 916 x 203 divide by 873 = 31425212 divide by 32536 = 965.9 miles

In this problem I use the square root key [ x2] on my calculator