A shopping mall announces a special discount on all its products as a festival offer
only to those who satisfy any one of the following conditions.
• If he/she is an employee of the mall and has a service of more than 10 years.
OR
• A regular customer of the mall whose age is less than 65 years and should
not be an employee of the mall.
OR
• If he/she is a senior citizen but not a regular customer of the mall.
The inputs are :
INPUTS
E Employee of the mall
R Regular customer of the mall
S Service of the employee is more than 10 years
C Senior citizen of 65 years or above
(In all the above cases, 1 indicates yes and 0 indicates no.)
Output: X - Denotes eligible for discount [1 indicates YES and 0 indicates NO in
all cases]
Draw the truth table for the inputs and outputs given above and write the
SOP expression for X ( E, R, S, C ).

Convert the following infix notation to prefix form.
(A–B)/C*(D+E)

Given below are two statements marked Assertion and Reason. Read the two
statements carefully and choose the correct option.
Assertion: Recursion utilises more memory as compared to iteration.
Reason: Time complexity of recursion is higher due to the overhead of
maintaining the function call stack.

Name the entity described above and state its principle.
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According to the Principle of duality, the Boolean equation
(Aꞌ + B) • (1 + B) = Aꞌ + B will be equivalent to:

The compliment of the Boolean expression Aꞌ • (B • Cꞌ + Bꞌ • C)

Study the given propositions and the statements marked Assertion and Reason that
follow it. Choose the correct option on the basis of your analysis.
p = I am a triangle
q = I am a three-sided polygon
s1 = p → q
s2 = q → p
Assertion: s2 is converse of s1
Reason: Three-sided polygon must be a triangle.