Arrange in hierarchical order by date the following inventions: I. - Census machine; Il. -
COMPUTER
WAEC 2017
Arrange in hierarchical order by date the following inventions:
I. - Census machine; Il. - Abacus; lll. - Slide rule; IV.- Difference engine.
- A. I, lI, IlI and IV
- B. I, Il, III and IV
- C. I, II, IV and llI
- D. I, IV, IlI and l
Correct Answer: A. I, lI, IlI and IV
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