question: A cylinder with a radius of 2.5cm and a height of 10cm contains two identical spherical balls that fit exactly inside it. What is the surface area of each ball? Give your answer correct to one decimal place.
query_wo: Please directly answer the question and provide the final value, e.g., 1, 2.5, 300.
  Question: A cylinder with a radius of 2.5cm and a height of 10cm contains two identical spherical balls that fit exactly inside it. What is the surface area of each ball? Give your answer correct to one decimal place.
query_cot: Please first conduct reasoning, and then answer the question and provide the final value, e.g., 1, 2.5, 300, at the end.
  Question: A cylinder with a radius of 2.5cm and a height of 10cm contains two identical spherical balls that fit exactly inside it. What is the surface area of each ball? Give your answer correct to one decimal place.
question_for_eval: A cylinder with a radius of 2.5cm and a height of 10cm contains two identical spherical balls that fit exactly inside it. What is the surface area of each ball? Give your answer correct to one decimal place.