Choose the odd one out among the following?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → Piano
Option (1) Piano — a musical instrument; its keys strike strings to make music. The other three are machines for writing or working with information, so the piano is the odd one out.
Option (2) Typewriter — a machine for writing; its keys print letters on paper.
Option (3) Computer — a machine that processes information, typed in through its keyboard.
Option (4) Calculator — a machine for working with numbers, used through its keys.