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Question: Answered & Verified by Expert
In how many ways can 10 true-false questions be replied
MathematicsPermutation CombinationJEE Main
Options:
  • A $20$
  • B $100$
  • C $512$
  • D $1024$
Solution:
2972 Upvotes Verified Answer
The correct answer is: $1024$
Required number of ways are \(2^{10}=1024\), because every question may be answered in 2 ways.

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