Subject: mathqa
Question: working together , jose and jane can complete an assigned task in 10 days . however , if jose worked alone and complete half the work and then jane takes over the task and completes the second half of the task , the task will be completed in 25 days . how long will jose take to complete the task if he worked alone ? assume that jane is more efficient than jose
Option: 
A: 25 days
B: 36 days
C: 30 days
D: 65 days
Answer: A