How Many 3-Line to 8-Line Decoders are Required For a 5 of 32 Decoder

Answer - C.

The number of decoders required to construct 5 of 32 decoders using 3-line to 8-line decoders is 4.

Solution

The detailed solution to how many 3-line to 8-line decoders are required for 5 of 32 decoders is provided here. 

Given decoder is 3 ×8

The decoder to be constructed is 5 ×32

Number of decoders required = 32/8 = 4

                                                      = 4 / 8 = 0.5

Number of decoders = 4 + 0.5 = 4.5   So, 4 Decoders were required.

Hence, Option (C) is the correct answer. 

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