Lee Ann Company collected the following amounts for subscriptions to the magazine it publishes during the past year:
| Date | Amount Collected | Subseription |
| April 1 | $ 60000 | one year |
| July 1 | $ 300000 | two years |
| October 1 | $ 36000 | three years |
What amount of subscription revenue should Lee Ann Co recognize for the year?（ ）
The subscriptions earned is the sum of $45000 ($60000×75 %), $7500 [($30000 / 2)× 0.5] and $3000 ($36000 divided by 3 years=$12000×3/12).