Question

create an expression using appropriate logical operators (AND,OR or NOT)

1. You can have only one meal
a. pizza
b. spaghetti

2. You need one of the following as proof of identity to get driver's license
a. passport
b. two of the following
(a) birth certificate
(b) ID CARD
(c) Bill statement with your name and address

Answer 1

Q1 You can have only one meal.

It is solve by using not gate if out put of not gate is

Output = 0 it means you have pizza

Output = 1 it means you have spaghetti

Input	Output	Meal
0	1	Spaghetti
1	0	Pizza

Q2 You need one of the following as proof of identity to get driver's license.

It is solve by using AND & OR gate.

AND gate is use for check  

Two of the following

(a) birth certificate.

(b) ID CARD.

(c) Bill statement with your name and address.

OR gate is use for check

one of the following as proof of identity

1. passport.

2. Two of the following.

Two of the following.

Birth certificate	ID Card	Bill	Birth certificate AND ID Card	Birth certificate AND Bill	ID Card AND Bill	Output (OR of all AND)
0	0	0	0	0	0	0
0	0	1	0	0	0	0
0	1	0	0	0	0	0
0	1	1	0	0	1	1
1	0	0	0	0	0	0
1	0	1	0	1	0	1
1	1	0	1	0	0	1
1	1	1	1	1	1	1

one of the following as proof of identity

Passport	Two of the following	Output (OR)
0	0	0
0	1	1
1	0	1
1	1	1

Here in output

0 - Not valid proof

1 - Proof is valid

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