Largest Number Using Given Digits (With Repetition)

Q. Sophie forms the largest three digit number using digits 9, 2, 4. The digits can be repeated. The number formed is

1. $249$
2. $924$
3. $999$
4. $942$

Q. Jack and his friends got the scores 4, 8, 2, and 7 in a quiz. What is the largest four-digit number that can be formed from their scores with repetition?

1. 7777
2. 8888
3. 8742
4. 2478

Q. Alexandar wants to build a luxurious tree house. A tree house builder tells him that the cost of making the tree house is the largest five-digit number from the digits 3, 4, 2, 9, and 0 with repetition. Help Alexandar find the cost of building the tree house.

1. 94, 320 dollars
2. 90, 000 dollars
3. 10, 000 dollars
4. 99, 999 dollars