How many two-digit numbers can be formed from the digits 2, 4, 6, 8, and 9 if it is permissible to use the same digit twice?
If it is permissible to use the same digit twice, there are 5 choices for the tens digit and 5 choices for the units digit. The principle above, thus, tells us that there are 5 × 5 = 25 ways to form two-digit numbers.
504 MCQ for effective preparation of the test of General of Mathematics section.
Read the MCQ statement: How many two-digit numbers can be formed from the digits 2, 4, 6, 8, and 9 if it is permissible to use the same digit twice? , keenly and apply the method you have learn through the video lessons for General to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 162-8894.