A picnic attracts 240 persons. There are 40 more men than women, and 40 more adults than children. How many men are at this picnic?	Options: A) 240 B) 75 C) 110 D) 90 E) 200

Rationale: "adult + children = 240 let , children = y then , adult = y + 40 i . e . y + ( y + 40 ) = 240 i . e . y = 100 i . e . adult = 100 + 40 = 140 adults include only men and women i . e . men + women = 140 let women , w = x then men , m = x + 40 i . e . x + ( x + 40 ) = 2 x + 40 = 140 i . e . x = 54 i . e . men , m = 54 + 40 = 90 answer : option d"
Answer: D