In this task, you need to provide the correct option for a given problem from the provided options.

Q: Problem: the ratio of the number of females to males at a party was 1 : 2 but when 4 females and 4 males left , the ratio became 1 : 3 . how many people were at the party originally ? 
Options: a ) 20 , b ) 22 , c ) 24 , d ) 26 , e ) 28

A: c
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Q: Problem: income and expenditure of a person are in the ratio 10 : 7 . if the income of the person is rs . 10000 , then find his savings ? 
Options: a ) 3005 , b ) 3098 , c ) 3300 , d ) 3010 , e ) 3000

A: e
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Q: Problem: teas worth rs . 126 per kg and rs . 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2 . if the mixture is worth rs 156 per kg , the price of the third variety per kg will be ? 
Options: a ) rs . 147.50 , b ) rs . 785.50 , c ) rs . 178.50 , d ) rs . 258.50 , e ) none of these

A:
c
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