A TRAIN TRAVELS 20 FEET IN IN 15 OF A SECOND AT THE SAME SPE

A TRAIN TRAVELS 20 FEET IN IN 1/5 OF A SECOND, AT THE SAME SPEED HOW MANY FEET WILL IT TRAVEL IN 3 SECONDS?

Solution

Step 1: Get to 1.
If a train travels 20 feet in 1/5 second, then how far will it travel in 1 whole second? We mus multiply 20 by 5 to find out:
20 * 5 = 100
Step 2: Extrapolate.
If a train travels 20 feet in 1 second, then it must travel 3 times as far in 3 seconds:
100 * 3 = 300
Answer: 300 feet