Can the sum of a 7 odd number make 50?

No, it can't unfortunately. The reason is that: Odd + Even= Odd Odd + Odd= Even Even + Even= Even So if we sum 7 odd numbers O+O+O+O+O+O+O= (O+O) +(O+O) +(O+O)+O= (E)+(E)+(E)+O=E+O=Odd That means that the sum of 7 odd numbers makes an odd number. read more

So the 9 odd numbers will pair up (except for the last one) to give you 4 even sums. These even numbers will add to even numbers. Eventually you will have an even number and an odd number as your last two numbers to be added. However if you add an even number and an odd number you'll get an odd number. read more

Basically the trick is to use operators such that after an operation on first even no. of odd numbers you still get an odd no. 9÷3*3*3+3. You can have even more possibilities of you use other operators like bracket,Factorials and all. read more