Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
81 views
in Aptitude by (115k points)
closed by

In each of the following number series, a wrong number is given, find out that number.

2, 13, 27, 113, 561,  3369, 23581


1. 13
2. 27
3. 113
4. 3369
5. 561

1 Answer

0 votes
by (113k points)
selected by
 
Best answer
Correct Answer - Option 1 : 13

Calculation:

The series follows following pattern:

⇒ 2 × 2 + 7 = 11

⇒ 11 × 3 – 6 = 27

⇒ 27 × 4 + 5 = 113

⇒ 113 × 5 – 4 = 561

⇒ 561 × 6 + 3 = 3369

⇒ 3369 × 7 – 2 = 23581

∴ Wrong number in the series is 13

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

...