Ruby Basic Exercises: Check a given non-negative number and return true if num is within 2 of a multiple of 10

Ruby Basic: Exercise-46 with Solution

Write a Ruby program to check a given non-negative number and return true if num is within 2 of a multiple of 10.

Ruby Code:

def check_num(num)
   return num % 10 <= 2 || num % 10 >= 8;
end
print check_num(9),"\n"
print check_num(13),"\n"
print check_num(22),"\n"
print check_num(-12),"\n"
print check_num(0)

Output:

true
false
true
true
true

Flowchart:

Ruby Code Editor:

Contribute your code and comments through Disqus.

Previous: Write a Ruby program to check two given integers and return 11 if either one is 11. Return their sum or difference if sum or difference is 11.
Next: Write a Ruby program to check three given integers and return true if it is possible to add two of the integers to get the third.