My conjecture (an opinion based on incomplete information) is that the product of two odd numbers is 22.
There is no requirement for a conjecture to be true.
Chat with our AI personalities
The last digit in the product of the first 20 odd natural numbers can be determined by looking at the pattern of the units digit in the multiplication of consecutive odd numbers. The units digit of the product of consecutive odd numbers alternates between 1 and 5. Since there are 10 odd numbers between 1 and 19, and 20 is also an odd number, the last digit in the product of the first 20 odd natural numbers is 5.
An odd number. (3 x 5 = 15, etc)
Not enough information.
The given numbers are all odd. The sum of 5 odd numbers must be odd. 50 is not odd so there is no solution.
You cannot. The sum of 5 odd numbers is always odd. 30 is not odd.