Question

The number divisible by 3 then print hello if number divisible by 5 then print world if 3 and 5 are divisible then print hello world

Answer 1

Answer:

Follwoing C program will perform the desired function:

#include<stdio.h>

int main()

{

int num;

printf("Enter any number\n");

scanf("%d",&num);

if(num % 15 == 0)

{

printf("hello world");

}

else if(num % 3 == 0)

{

printf("hello");

}

else if(num % 5 == 0)

{

printf("world");

}

return 0;

}

Explanation:

There are three important things that we keep in our minds while writing the code for this program.

• First, if the number is divisible by 3 then we print "hello".
• For doing this, we check the divisibility of numbers by using the remainder operator.
• Second thing, if the number is divisible by 5 then we print "world".
• For doing this, we check the divisibility of numbers by using the remainder operator.
• The third and the most important thing is when we check the divisibility by both 3 and 5. Since the LCM of 3 and 5 is 15.
• So if a number is divisible by 15 then it will surely be divisible by 3 and 5 both.
• That is why we have written the first condition with %15 and if it is true then we print "hello world".

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