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# It requires no mathematical calculation but

If 31x + 29y + 30z = 366, find the value of x + y + z .

Note by Priyanshu Mishra
2 years, 2 months ago

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Comment deleted Mar 22, 2015

SEE THE SOLUTION BELOW: Observe that in a leap year there are total 366 days . Now calculate that how many months are there having 31 days, 29 days and 30 days. Add them all and obviously you will get 12 which is the value of x + y +z .!!!! · 2 years, 2 months ago

It should be mentioned that $$x,y,z$$ are natural numbers. · 2 years, 2 months ago

yes , sorry for that. · 2 years, 2 months ago

Interesting answer :) · 2 years, 2 months ago