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A student has to answer 10 out of 13 que...

A student has to answer 10 out of 13 questions in an examination. The number of ways in which he can answer if he must answer atleast 3 of the first five questions is `276` b. `267` c. `80` d. `1200`

A

276

B

600

C

840

D

640

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A
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