MBA Exam Numerical Ability Permutation and Combination

A telegraph has 5 arms and each arm is capable of 4 distinct positions including the position of rest. What is the total number of signals that can be made ?
a) 1024
b) 1021
c) 1020
d) 1022
e) 1023

Read Solution (Total 1)

4*4*4*4*4 - 1= 1023
10 years agoHelpfull: Yes(2) No(5)

MBA Other Question

'She is smart' is coded as 'te fa la',
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and 'smart boy' is coded as 'la na'.
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