General Maths Puzzle Category

how three odd numbers sum is to be 30
a+b+c=30
the numbers can be repeated

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sum of odd number of odd numbers is always odd.So a+b+c can never be equal to 30.
8 years agoHelpfull: Yes(2) No(1)

General Other Question

If cost price of two articles are same and selling price of two articles are same then what is the loss ,profit in both the cases.. In a star put diamonds to the edges in such a way that start with any one of the edge with counts 1,2,3.At third position put a diamond,such that filling of diamonds is to be 9 but not 10.
rules: have to come across edges only,not in diagonal.
can't start from one diamond to another,but can go through it,i.e.,if there is a gap in between a row from edge them it's correct.