A boat goes 240 miles downstream in the same time it can go 160 miles upstream. The speed of the current is 5 miles per hour. Which equation could be used to find the speed of the boat in still water?
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Answer:
FOLLOW MY STEPS :-
Step-by-step explanation:
Let the speed of the boat in still water be x mph
Downstream distance :— 240 miles
Upstream distance:— 160 miles
Both upstream and downstream distances covered in the same time
Speed in upstream : current speed - boat speed in still water
Speed in down stream:— current speed + boat speed in still water
Time taken to cover 240 miles downstream: 240÷ ( 5 + x )
Time taken to cover 160 miles upstream:— 160÷ ( 5 — x )
240/ 5 + x = 160/ 5 -x
x = 1
Answer:-
Speed of the boat in still water: 1 mile per hour
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