Final answer:
The Hammerhead shark would have traveled farther in 15 hours. The Tiger shark, swimming at a constant speed of 20 miles per hour, would cover 300 miles in 15 hours, while the Hammerhead shark already covered 375 miles in the same time period, thus traveling farther by 75 miles.
Step-by-step explanation:
To determine which shark would have traveled farther in 15 hours, we need to calculate the speed of each shark and then use that speed to compare their distances over the same time period.
The Tiger shark swam 240 miles in 12 hours, so its speed is 240 miles / 12 hours = 20 miles per hour. If the Tiger shark continued swimming at this rate for 15 hours, it would have traveled 20 miles/hr x 15 hours = 300 miles.
The Hammerhead shark swam 375 miles in 15 hours, which simplifies to a speed of 375 miles / 15 hours = 25 miles per hour. Over 15 hours, the Hammerhead shark would have traveled 375 miles, since this is the distance given for that period.
Comparing both distances over 15 hours, the Hammerhead shark would have traveled 375 miles while the Tiger shark would have traveled 300 miles. Hence, the correct answer is:
A) The Hammerhead shark would have traveled farther by 75 miles.