Statements: All flowers are trees. Some trees are herbs. Conclusions: I. Some herbs are flowers. II. Some trees are flowers. MCQ with Answer and Explanation

Explanation:
South and north movements cancel; net movement is 5 km east.

Explanation:
5 machines take 5 minutes to make 5 articles, so 5 machine-minutes make 1 article. 100 articles need 500 machine-minutes; in 100 minutes, 5 machines are needed.

Explanation:
Positions: 2,4,7,11,16; differences +2,+3,+4,+5; next +6 gives position 22 = V.