Microsoft-Excel 2007 Study Material Day-twenty three

Logical Functions:

1) AND ( ) : Returns true if all arguments are true ,returns false if one or more arguments is false.

Syntax : =AND(condition)

Example : 

2) OR ( ) : Returns true if any arguments is true ,return false if all arguments are false.
Syntax : =OR(Condition)
Example : 

3) NOT ( ) : Use the NOT function, one of the logical functions, when you want to make sure one value is not equal to another.
Syntax : =NOT(Condition)
Example : 

4) IF ( ) : The IF function is one of the most popular functions in Excel, and it allows you to make logical comparisons between a value and what you expect.
Syntax : =if(logical_test,[value_if_true],[value_if_false])

Example : 

Total      :   =SUM(C2:E2)

Average :   =AVERAGE(C2:E2)

Result    :  =IF(AND(C2>=35,D2>=35,E2>=35),"PASS","FAIL")

Grade    :  =IF(AND(G2>=75,H2="PASS"),"A",IF(AND(G2>=60,H2="PASS"),"B",IF(AND(G2>=50,H2="PASS"),"C",IF(AND(G2>=35,H2="PASS"),"D","***")))) 

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