Practice30Create account

Letters may repeat. How many 3-letter codes can be formed from the 26 letters of the English alphabet?

Competition practicePermutations & Combinations
  • A17576
  • B15600
  • C2600
  • D78

Step-by-Step Solution

Each of the 3 places has 26 choices: forbids repeats.)
Answer: A) 17576

Master this topic in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Permutations & Combinations practice questions

More Permutations & Combinations practice

On Diwali, each of 5 friends sends one greeting card to every other friend in the group.…The mess committee of a hostel has 8 students. A head, a deputy and a cashier are to be…A hall has 4 doors. In how many ways can a person enter by one door and leave by a…Count all the different arrangements of the letters of the word KERALA.Digits may repeat. How many 3-digit numbers can be written using the digits 0 to 9?