Step-by-step explanation:
Given,
Marks of the four exams = 65, 80, 76, 68
Let the mark for the fifth exam be = x
Mean of the five exams = 70
Therefore,
By the problem,
=> 289 + x = 70 × 5
=> 289 + x = 350
=> x = 350 - 289
=> x = 61
Hence,
Marks of the fifth exam is 61 (Ans)
Possibly D
Step-by-step explanation:
I've marked out what could be wrong and I'm pretty sure this is correct if not I'm sorry I'm horrible at geometry.