There is food for 760 men for 22 days. How many more men should join after two days so that the same food may last for 19 days more? Pick one.
A) 11	B) 40	C) 66	D) 55	E) 44

Rationale: "760 - - - - 22 760 - - - - 20 x - - - - - 19 x * 19 = 760 * 20 x = 800 760 - - - - - - - 40 answer : b"
Answer: B