There are 10 questions in a question paper. In how many ways, a student can solve these questions, if he solves one or more questions?

A) 1024
B) 1025

C) 1023
D) 1000

Correct answer:
C) 1023

Description for Correct answer:
Required number of ways

= \( 2^n- 1 = 2^10-1 = 1024 -1 = 1023 \)

Please provide the error details in above question

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