Sandeep participated in four quizzes of 100 marks each. The quizzes contain two options out of which one is correct and

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Q 2269667515.     Sandeep participated in four quizzes of 100 marks each. The quizzes contain two options out of which one is correct and a total of 10 questions are there of 10 marks each in each of the quizzes. He scored 50, 60 and 90 in the first 3 quizzes. What is the probability that his average in all the four quizzes is greater than 65%?
IBPS-PO 2017 Mock Mains
A

11/64

B

1/2

C

11/256

D

11/128

E

11/32

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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