instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: last year elaine spent 20 % of her annual earnings on rent . this year she earned 35 % more than last year and she spent 30 % of her annual earnings on rent . the amount she spent on rent this year is what percent of the amount spent on rent last year ?
answer:
202.5


question:
Problem: a , b and c start a business each investing 20,000 . after 5 months a withdrew 5000 , b withdrew 4000 and c invests 6000 more . at the end of the year , a total profit of 69,900 was recorded . find the share of b .
answer:
28,200


question:
Problem: in a group of cows and hens , the number of legs are 16 more than twice the number of heads . the number of cows is :
answer:

8