There are 15 students in a class. On the day the test was given, Cara was absent. The other 14 students took the test and their average was 76. The next day, Cara took the test, and with this grade included, the new average was 77. What was Cara's grade on the test?	Select
A) 89	B) 90	C) 91	D) 92	E) 93
14*76+Cara's grade=15*77   Cara's grade is  15*77-14*76= 
<gadget id="calculator"> 15*77-14*76</gadget>
<output>91</output>
91.   The answer is 91.
<result>C</result>
There are 15 students in a class. On the day the test was given, Cara was absent. The other 14 students took the test and their average was 76. The next day, Cara took the test, and with this grade included, the new average was 77. What was Cara's grade on the test?