The task is to generate the correct answer for a given math problem.

[EX Q]: Problem: in a village of 2,500 people , 800 people are over 70 years old and 850 people are female . it is known that 40 percent of the females are younger than 70 years old . if no one in the village is 70 years old , what is the probability that a person chosen at random is either a male or younger than 70 years old ?
[EX A]: 199 / 250

[EX Q]: Problem: a cycle is bought for rs . 900 and sold for rs . 1080 , find the gain percent ?
[EX A]: 20 %

[EX Q]: Problem: a salesman sold twice as much pears in the afternoon than in the morning . if he sold $ 510 kilograms of pears that day , how many kilograms did he sell in the afternoon ?
[EX A]:
340