Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
18, 36, 25, 50, 39, ?

Option 1: 72

Option 2: 76

Option 3: 74

Option 4: 78


Team Careers360 5th Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: 78


Solution : Given:
18, 36, 25, 50, 39, ?

The pattern is as follows –
18 × 2 = 36; 36 – 11 = 25; 25 × 2 = 50; 50 – 11 = 39; 39 × 2 = 78

So, the missing number is 78. Hence, the fourth option is correct.

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
GRE ® Registrations 2024
Apply
Apply for GRE® Test now & save 10% with ApplyShop Gift Card | World's most used Admission Test for Graduate & Professional Schools
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books