The digits 1, 3, 5, 7, and a decimal point are used exactly once to form a decimal number. The number is greater than 7 and has the digit 3 in the hundredths place. What is the SMALLEST possible value of this number?
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Worked Solution
Constraints:
- Digits: 1, 3, 5, 7 (each once)
- Number > 7, so ones digit = 7
- 3 is in hundredths place
- Format: 7.X3Y or similar
With ones=7, hundredths=3, remaining digits for tenths and thousandths: {1, 5}
Possibilities:
- 7.135 (tenths=1, hundredths=3, thousandths=5)
- 7.531 (tenths=5, hundredths=3, thousandths=1)
Smallest = 7.135
Answer: 7.135
Correct answer: 7.135
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