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

Go to:
PREV : 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.
Ruby Code Editor:
Contribute your code and comments through Disqus.
What is the difficulty level of this exercise?