instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: what is the value of x ^ 2 yz − xyz ^ 2 , if x = − 2 , y = 1 , and z = 1 ?
answer:
6


question:
Problem: two cubes have their volumes are in the ratio 1 : 27 . find the ratio of their surface area ?
answer:
1 : 9', 'd ) 2 : 7', 'e ) 3 : 11'


question:
Problem: a fruit juice company earns $ 150 per 100 gallons of apple juice sold , $ 170 per 100 gallons of guava juice sold , $ 130 per 100 gallons of grape juice sold , $ 100 per 100 gallons of orange juice . if the company manages to sell 230 gallons of apple , 210 gallons of guava , 310 gallons of grape , 270 gallons of orange on a particular day . what is the average earning of the company per 100 gallon of the juice sold ?
answer:

134.8