If 8 men can reap 80 hectares in 24 days , then how many hectares can 36 men reap in 30 days?	Answers.
A) 127 B) 237 C) 287 D) 450 E) 281

Rationale: "explanation : let the required no of hectares be x . then more men , more hectares ( direct proportion ) more days , more hectares ( direct proportion ) men \ : 8 : 36 \ \ days \ : 24 : 30 \ end { matrix } \ right \ } : 80 : x \ inline \ fn _ jvn \ therefore \ inline \ fn _ jvn 8 \ times 24 \ times x = 36 \ times 30 \ times 80 \ inline \ fn _ jvn \ leftrightarrow \ inline \ fn _ jvn x = \ frac { 36 \ times 30 \ times 80 } { 8 \ times 24 } \ inline \ fn _ jvn \ leftrightarrow x = 450 answer : d"
Answer: D