vasu7900 wrote:
Always remember one thing. In data sufficiency questions, don't try to find the solution of the problem. Instead check whether solution can be found based on the information provided or not. In first statement, x can be found with 2 values. So the equation in question is solvable using the values to x. Hence either statement is sufficient to. Solve the question.
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I beg to differ here. DS type question is based on whether we are able to arrive on a particular answer or not. If a particular statement leads to two different answers, then that statement should be considered insufficient.
In this particular question, if we solve statement 1, it is giving two different values for x, ie, 4 and -10. So putting the values in the original equation, we will get two different values. Hence we cannot conclude a single solution for that equation.
Whereas, statement 2 gives us a single value of x, ie, 4. Putting the value in the original equation gives us an undisputed solution.
So IMO answer should be B.
Requesting experts to point out where i went wrong since OA is provided as D.