Mariah can swim 100meters in 1 minute and 40 seconds. As long as her swimming speed remains constant, how fast can she swim 2050-meter race?

Answer 1

Use a ratio using 5/3 minutes for 1 minute & 40 seconds & x as the unknown.

Then,

(5/3) minutes/100 meters = x minutes/2050 meters

x = 34.17 minutes or 34 minutes & 10 seconds