instruction:
In this task, you need to provide the correct option for a given problem from the provided options.
question:
Problem: a class has a ratio of 3 : 6 : 7 of children with red hair , blonde hair and black hair respectively . if the class has 9 kids with red hair , how many kids are in the class ? 
Options: a ) 99 , b ) 48 , c ) 16 , d ) 22 , e ) 60
answer:
b


question:
Problem: veena ranks 73 rd from the top in a class of 198 . what is her rank from the bottom if 22 students have failed the examination ? 
Options: a ) 88 , b ) 104 , c ) 110 , d ) 90 , e ) 93
answer:
b


question:
Problem: apple costs l rupees per kilogram for first 30 kgs and q rupees per kilogram for each additional kilogram . if the price of 33 kilograms is 168 and for 36 kgs of apples is 186 then the cost of first 20 kgs of apples is 
Options: a ) 3.69 , b ) 3.66 , c ) 3.6 , d ) 100 , e ) 3.61
answer:

d