We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.More informationAgree
menu ×
Google
Custom Search
cancel
search
FacebookTwitterLinkedIn×
share
page location
×
ad

Solved Examples(Set 1) - Series - Find Missing Number

1. Insert the missing number. $12,25,49,99,197,395,\_$
A. $789$B. $812$
C. $1579$D. $722$
Discuss
answer with explanation

Answer: Option A

Explanation:

Each number is twice the previous one with $1$ added or subtracted alternatively.
2. Insert the missing number. $34,7,37,14,40,28,43,\_$
A. $42$B. $56$
C. $31$D. $46$
Discuss
answer with explanation

Answer: Option B

Explanation:

We have two series here.

$34,37,40,43,\cdots \text{(increase by 3)}\\7,14,28,\cdots \text{(multiply by 2)}$

Hence, next term is $28×2=56$

3. Find the missing number. $1,4,9,16,25,36,49,\_$
A. $64$B. $81$
C. $54$D. $56$
Discuss
answer with explanation

Answer: Option A

Explanation:

The series is $1^2,2^2,3^2,4^2,5^2,6^2,7^2,\cdots$

Hence, next term $=8^2=64$

4. Insert the missing number. $2,7,10,22,18,37,26,\_$
A. $52$B. $42$
C. $62$D. $46$
Discuss
answer with explanation

Answer: Option A

Explanation:

There are two series here

$2,10,18,26,\cdots \text{(increase by 8)}\\7,22,37,\cdots \text{(increase by 15)}$

Hence, next term $=37+15=52$

5. Find the missing number. $4,12,48,240,1440,\_$
A. $10020$B. $10080$
C. $7620$D. $6200$
Discuss
answer with explanation

Answer: Option B

Explanation:

$4×3=12\\12×4=48\\48×5=240\\240×6=1440\\1440×7=10080$

Comments(66)

profile Mohamed
2015-04-08 22:26:26 
Missing nummber of 1, 8, 2, 7, 3, 6, 4, .......?
like 1 dislike 0 reply
profileCharanjit Kaur
2020-03-09 06:39:01 
5 is answer
8-1-7-1-6-1-5
like 0 dislike 0
profileDev
2015-04-09 18:33:35 
5

Two series
1    2   3    4   
   8    7   6    5
like 1 dislike 0
profileVictory
2015-04-02 06:18:42 
3 5 6 12  ----- 24 26

Missing number for this is 19. Please let me how the answer is 19
like 0 dislike 0 reply
profilegaurav
2015-10-02 14:57:10 
3 6 12 24 (alternate terms getting doubled)
5 12 19 26 (increased by 7 alternate terms)
like 0 dislike 0
profilevishal
2015-04-01 07:34:53 
find next term 10,15,23,31,41,?
like 0 dislike 0 reply
profileCharanjit Kaur
2020-03-09 06:40:20 
Answer is $51$
like 0 dislike 0
profilemd
2015-04-14 08:12:28 
51
like 0 dislike 0
profilechirag
2015-03-16 11:41:26 
18,27,49,84,132..
a) 188
b) 193
c) 168

can nybody tel how the ans wil be 193 ???
like 0 dislike 0 reply
profilearnav
2016-08-17 06:37:39 
18+9 = 27
27+22(9+13=22) = 49
49+35(22+13) =84
84+48(35+13) = 132
132+61 (48+13) =193
like 1 dislike 0
1234
...
7Next
1-10 of 66 comments

Add Your Comment

(use Q&A for new questions)
?
Name
cancel
preview