The mean of 50 observations is 200. But later he found that there is decrements of 15 from each observations. what is the the updated mean is ?	Choose the correct choice from the following options:
A) 165
B) 185
C) 198
D) 221
E) 240
185   Answer is 185
<result>B</result>
The mean of 50 observations is 200. But later he found that there is decrements of 15 from each observations. what is the the updated mean is ?