Read the given question and decide which of the following equations is/are sufficient/necessary to answer the question?
If both x and y are positive integers, then what is the value of x?
Equation :
1) x + 2y = 14
2) x – y = 2
1
Equation 1 alone is sufficient to obtain the value of x.
2
Equation 2 alone is sufficient to obtain the value of x.
3
Neither equation 1 nor equation 2 alone is sufficient to obtain the value of x, but both together are necessary.
4
Any one equation or both the equations combined is not sufficient to obtain the value of x.