The number of keys in an ordinary piano is____________?
Correct answer: C. 88
- A. 66
- B. 77
- C. 88
- D. 44Education
Explanation
A standard modern piano has 88 keys: 52 white keys and 36 black keys. Earlier pianos sometimes had fewer keys, but 88 is the ordinary modern standard.
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About Inventions and Discoveries
Inventions and Discoveries covers the people, dates, principles and practical uses behind developments such as the wheel, printing press, telephone, electricity, radio, computer, internet, vaccines and space technology. It distinguishes an invention, which creates a device or process, from a discovery, which identifies something already present in nature.
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