A ship can cover a certain distance in 10 hours at a speed of 16 nautical miles per hour. By
how much should its speed be increased so that it takes only 8 hours to cover the same
distance? (A nautical mile in a unit of measurement used at sea distance or sea water i.e.
1852 metres).

• distance = time×speed =10×16=160mile when time 8 hr then speed =distance/time = 160/8=20 increase in speed= 20-16=4 4 is answer
• 6 years agoHelpfull: Yes(1) No(0)