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 10 days more? Choose the correct choice from the following answers: A) 220 B) 760 C) 990 D) 880 E) 660

Rationale: "760 - - - - 22 760 - - - - 20 x - - - - - 10 x * 10 = 760 * 20 x = 1520 760 - - - - - - - 760 answer : b"
Answer: B