The GCF of 5 and 10 is 5.
You need at least two numbers to find a GCF.
You need at least two numbers to find a GCF.
You need at least two numbers to find a GCF.
Let the two numbers be x and y. Let suppose that the average of two numbers is 20. Then,x + y = 40 and 40/GCF = 5, where GCF = 40/5 = 8Since LCM is 48 and GCF is 8, the numbers are 16 and 24, whose average is 20 is true.
15 and 25
50 and 45
As a general principle, you can find the LCM of two numbers by dividing their product by their GCF. This one won't work. The product of any two numbers with 5 as a common factor would have to end in 5 or 0.
You need at least two numbers to find a GCF. If that's 4 and 5, the GCF of any two consecutive numbers is 1.
45 and 10
The GCF is 1.
The greatest common factor of the two numbers is 5. 55/5 = 11, 20/5 = 4.
You need at least two numbers to find a GCF. If that's 200 and 205, the GCF is 5.