Question: Jack cycles from his home to the store. Then he cycles, at the same speed, 50 miles to his friend Peter. It takes Jack twice as long to go from his home to the store as it takes to go from the store to his friend. If Peter and Jack now cycle back to the store together, how many miles in total have they cycled today? Think carefully first, then make a decision:
When Jack cycles from home to the store, it takes 2 * 50 = 100 miles. He then cycles 50 miles to Peter. When Peter and Jack cycle back to the store, they cover a total of 50 + 50 = 100 miles. The total number of miles covered is 100 + 50 + 100 = 250 miles. So the answer is 250.