Digit swap: In the number 1,478, interchanging the digits 7 and 4 gives 1,748. Now, interchange any two digits in the number 1,478 to make a number that is larger than 5,500.
7,418 (interchange 1 and 7)
Step 1: Original number is 1,478
Step 2: We need a number greater than 5,500
Step 3: The thousands digit must be at least 5
Step 4: Swap 1 (thousands) with 7 (tens) to get 7,418
Step 5: 7,418 > 5,500 ✓
Explanation
To make a number larger than 5,500 from 1,478, we need to swap digits so that the thousands place gets a larger digit. Swapping 1 and 7 gives 7,418, which is greater than 5,500.
Solution Steps
Step 1: Original number is 1,478
Step 2: We need a number greater than 5,500
Step 3: The thousands digit must be at least 5
Step 4: Swap 1 (thousands) with 7 (tens) to get 7,418
Step 5: 7,418 > 5,500 ✓