Question 1167426: The sum of two whole number is 45 and their difference is less than 10. The number of all the possible pair is
Answer by dkppathak(439)   (Show Source):
You can put this solution on YOUR website! The sum of two whole number is 45 and their difference is less than 10. The number of all the possible pair is
solution
x+y=45
x-y=9 solve both x=27 y=18 (27,18)
another pair
similarly
x+y=45
x-y=7 x=26 y=19 (26,19) (25,20) (24,21)(23,22)
pair are (27,18)(26,19)(25,20)(24,21)(23,22)
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