Question

What will be value of sum after execution of the statement? for(i=1, sum=0; i<=5; i++) sum+=i; (i) 13 (ii) 15 (iii) 25 (iv) Error in statement.

Answer 1

Answer:

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Answer 2

The value of sum after execution of the statement is Option (ii) 15

Explanation:

for(i=1,sum=0;i<=5;i++)

sum+=i ;// this statement can also be written as sum=sum+i

initially i=1 ,1<=5 so sum=sum+i so 0+1=1

sum=1

Then, value of i will be incremented as i++, i=2

Sum=1+2=3

now i=3,3<=5 sum=3+3=6

now i=4,4<=5 sum=6+4=10

now i=5,5<=5 sum=10+5=15

now i=6,6<=5, now the condition becomes false so it will end the for loop.  

Output is 15.