It is a tricky question .Only hard part is understanding the word problem and then converting it into numbers. Let us concentrate on the problem now. Let us assume the unknown number = x The coming to the equation part, we get 6(2 - x) = 10 12 - 6x = 10 -6x = 10 - 12 -6x = -2 x = 2/6 = 1/3 So the unknown number is 1/3. I hope i have solved the question to your satisfaction and in future you can do this type of problems by yourself.
