Correct Answer: Option D

Explanation

1 II. Abacus (circa 500 BC)

2 III. Slide rule (17th century, around 1620)

3 IV. Difference engine (early 19th century, 1822)

4 I. Census machine (1890)

So the proper sequence is II, III, IV, I.

• if 5^(2x)=125 find x? Answer this

  3 Answers   ·   Mathematics   ·   4 days ago
• how does post utme looks like and what are the subjects required for a medical student? Answer this

  2 Answers   ·   2 days ago
• What are the male and female reproductive hormones in animals? Answer this

  4 Answers   ·   Agricultural Science   ·   2 days ago