An entrance exam question paper consists of five problems, each problem having three choices. In how many ways can a student attempt one or more problems?
Choose the correct option:
A) 500
B) 1023
C) 1024
D) 1035
E) 1300
paper 5 problems and each 3 choices so no of ways = 4^5 -1   = 2^10 - 1 = 1024 - 1= 
<gadget id="calculator">1024 - 1</gadget>
<output>1_023</output>
1023   ANSWER 1023
<result>B</result>
An entrance exam question paper consists of five problems, each problem having three choices. In how many ways can a student attempt one or more problems?