RRB NTPC · Question 116
You are given a question followed by two statements numbered I and II. You have to decide whether the data provided on the statements are sufficient to answer the question. What is the value of 'x'? Statements : I. x + 2y = 6 II. 3x + 6y = 18
Show answer & explanation
Answer: (B) Both statements I and II together are not sufficient
Explanation
Statement II is just Statement I multiplied by 3, so together they give only one equation in two unknowns. x cannot be found even with both.