If-else-If Ladder : Program to calculate the division of a student according to marks obtained

output :
       enter marks in 3 subjects : 90 60 30
       first division

In the above program we can also use if statement in the place of else if . But the time to execute the program is increased.In if statement every condition is checked whether it's true or false. In case of else if : if condition is true then exit, if false then going to check next condition.

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