Quantitative Aptitude
Exercise Mode
Missing No.
Practice and master this topic with our carefully crafted questions.
4
Questions
6
Minutes
0%
Completed
Directions to Solve
Insert the missing number.
Question 11
8, 7, 11, 12, 14, 17, 17, 22, (....)
Correct Answer: Option B
There are two series (8, 11, 14, 17, 20) and (7, 12, 17, 22) increasing by 3 and 5 respectively.
Question 12
16, 33, 65, 131, 261, (....)
Correct Answer: Option A
Each number is twice the preceding one with 1 added or subtracted alternatively.
So, the next number is (2 x 261 + 1) = 523.
Question 13
10, 5, 13, 10, 16, 20, 19, (....)
Correct Answer: Option B
There are two series (10, 13, 16, 19) and (5, 10, 20, 40), one increasing by 3 and the other multiplied by 2.
Question 14
4, -8, 16, -32, 64, (....)
Correct Answer: Option B
Each number is the proceeding number multiplied by -2.
So, the required number is -128.