SOLUTION:
Case: Rounding of numbers
Method:
the nearest hundred thousand is 400,000
the nearest ten thousand is 350,000
A possible number is any number between:
350,000 and 354,999.
The least number is 350,000 because it is the smallest number that can be rounded up to 400,000 while 354,999 is the biggest number that can be rounded down to 350,000.
Final answer:
351,000