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Rules to Draw Flowcharts
You must follow these basic rules while drawing a flowchart:
Maintain the direction of the flow from left to right or top to bottom.
Only one flow line should come out from a process box.
Only one flow line should enter a decision box, but two flow lines should leave the
decision box.
Ensure that the flowchart has a logical start and end.
Look at the flowchart to calculate simple interest.
Start
Read P for Principal
r for rate
t for time
Calculate
SI = (P * r * t)/100
Print SI
Stop
SOLVING PROBLEMS USING ALGORITHMS AND FLOWCHARTS
Some examples are given below to solve the problems using algorithms and flowcharts:
Example 1: Write an algorithm and draw a flowchart to check whether a given number is
even or odd.
Algorithm: Flowchart:
Step 1: Start. Start
Step 2: Read Number.
Step 3: Check If Number % 2 == 0 Then Read a Number
print "Number is even."
Else
print "Number is odd." Is
Yes
Number%2==0? Print Number is even
Step 4: Stop.
No
Print Number is odd
Stop
38 Information Technology (V5.0)-VI

