LIVE Course for free

Rated by 1 million+ students
Get app now
0 votes
17 views
in Aptitude by (54.3k points)
closed by

If 3x - y = 27 and 3x + y = 243, then x is equal to


1. 4
2. 6
3. 2
4. 0

1 Answer

0 votes
by (30.0k points)
selected by
 
Best answer
Correct Answer - Option 1 : 4

Given 

3x - y = 27

3x + y = 273

Concept Used 

am = a

m = n 

Calculation 

⇒ 3x - y  = 33

⇒ x - y = 3 ----(1)

⇒ 3x + y = 273 = 35

⇒ x + y = 5  ----(2)

From (1) and (2) , we get x = 4 

∴ The value of x is 4 

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...