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Sum and average of three numbers in PL/SQL

  • Last Updated : 12 Jul, 2018

Prerequisite PL/SQL introduction
In PL/SQL code groups of commands are arranged within a block. A block group related declarations or statements. In declare part, we declare variables and between begin and end part, we perform the operations.

Given three numbers and the task is to find out the sum and average of three numbers.

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Input: a = 12, b = 15, c = 32
Output: sum = 59 avg = 19.66

Input: a = 34, b = 45, c = 11
Output: sum = 90 avg = 30

Approach is to take three numbers and find their sum and average using the formula given below-
Sum: a+b+c
Average: (a+b+c)/3
Where a,b,c are the three numbers.

Below is the required implementation:

--To find sum and avg of three numbers 
    -- Assigning 12 into a 
    a     NUMBER := 12; 
    -- Assigning 14 into b 
    b     NUMBER := 14; 
    -- Assigning 20 into c 
    c     NUMBER := 20; 
    -- Declare variable for sum  
    -- Of Three number (a, b, c) 
    sumOf3 NUMBER; 
    -- Declare variable for average 
    avgOf3 NUMBER; 
--Start Block 
    -- Assigning sum of a, b and c into sumOf3 
    sumOf3 := a + b + c; 
    -- Assigning average  of a, b and c into avgOf3 
    avgOf3 := sumOf3 / 3; 
    --print Result  sum of a, b, c number 
    dbms_output.Put_line('Sum = ' 
    --print Average  sum of a, b, c number 
    dbms_output.Put_line('Average = ' 
--End Program 


Sum = 46
Average = 15.33

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