Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series.
72, 66, 63, 57, 54, 48, ?
Option 1: 58
Option 2: 39
Option 3: 45
Option 4: 43
Correct Answer: 45
Solution :
Given:
72, 66, 63, 57, 54, 48, ?
Subtract 6 and 3 alternately from the given numbers to obtain the next number.
72 – 6 = 66; 66 – 3 = 63; 63 – 6 = 57; 57 – 3 = 54; 54 – 6 = 48; 48 – 3 = 45
So, the missing number in the series is 45. Hence, the third option is correct.
Related Questions
Know More about
Staff Selection Commission Multi Tasking ...
Application | Cutoff | Selection Process | Preparation Tips | Eligibility | Exam Pattern | Admit Card
Get Updates Brochure
Your Staff Selection Commission Multi Tasking Staff Exam brochure has been successfully mailed to your registered email id “”.
