WBCS.LIVE practice question

What is the minimum number of four digits formed by using the digits 2, 4, 0, 7?

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. 2047
  2. 2247
  3. 2407
  4. 2470

Correct answer and explanation

Correct answer: 2047

Explanation: āœ… Correct Answer: A) 2047 šŸ“š Explanation: To form the smallest four-digit number using the digits 2, 4, 0, and 7, we must arrange them in ascending order. However, the digit 0 cannot be placed at the thousands place, as that would create a three-digit number. Therefore, the next smallest non-zero digit, 2, is placed at the first position, followed immediately by 0, 4, and 7. This logical sequence yields exactly 2047.