Question 25
Eve has \$400 in Australian notes in her wallet, in a mixture of 5, 10, 20 and 50 dollar notes.
As a surprise, Viv opens Eve’s wallet and replaces every note with the next larger note. So, each \$5 note is replaced by a \$10 note, each \$10 note is replaced by a \$20 note, each \$20 note is replaced by a \$50 note and each \$50 note is replaced by a \$100 note.
Eve discovers that she now has \$900. How much of this new total is in \$50 notes?
As a surprise, Viv opens Eve’s wallet and replaces every note with the next larger note. So, each \$5 note is replaced by a \$10 note, each \$10 note is replaced by a \$20 note, each \$20 note is replaced by a \$50 note and each \$50 note is replaced by a \$100 note.
Eve discovers that she now has \$900. How much of this new total is in \$50 notes?