ABC26GN1043 · Simplification

Subject: General Aptitude · Chapter: Simplification · Exam: · Marks: · Difficulty:

Which of the following values of x and y satisfy the following equations I and II? I. 3x + y = 19 II. x – y = 9

(a)– 7, – 2

(b)– 7, 2

(c)7, – 2

(d)7, 2

Answer

Answer (as printed): C

Explanation

3x + y = 19 ...(i) and x – y = 9 ...(ii) Adding (i) and (ii), we get: 4x = 28 or x = 7. Putting x = 7 in (i), we get: y = – 2.

Explanation as extracted from the printed page; notation may be imperfect.