Number Series Test 2 (1.5 Minutes Per Question)

  • CCSS.Math.Content
Reviewed by Editorial Team
The ProProfs editorial team is comprised of experienced subject matter experts. They've collectively created over 10,000 quizzes and lessons, serving over 100 million users. Our team includes in-house content moderators and subject matter experts, as well as a global network of rigorously trained contributors. All adhere to our comprehensive editorial guidelines, ensuring the delivery of high-quality content.
Learn about Our Editorial Process
| By Ashwin
A
Ashwin
Community Contributor
Quizzes Created: 6 | Total Attempts: 779
| Attempts: 104 | Questions: 10
Please wait...
Question 1 / 10
0 %
0/100
Score 0/100
1) 20  10  12  15  30  75  225

Explanation

20*0.5 = 10
10*1 = 10 (Given as 12 in the question)
10*1.5=15
15*2 = 30
30*2.5 = 75 and so on.
12 is the wrong term in the series.

Submit
Please wait...
About This Quiz
Number Series Test 2 (1.5 Minutes Per Question) - Quiz

Challenge your mathematical skills with Number Series Test 2, featuring a series of questions designed to test pattern recognition and problem-solving abilities in number series.

Tell us your name to personalize your report, certificate & get on the leaderboard!
2) What will come in place of the question mark (?) in the given number series ?123, 140, 106, 157, 89, ?

Explanation

123 +17 = 140
140-34 = 106
106+ 51 = 157
157- 68=89
89 + 85 = 174.

Submit
3) 95, 115.5, 138, ? , 189

Explanation

The pattern is +20.5, +22.5, +24.5, +26.5, ....

Submit
4) 190, 94, 46, 22, ?, 4

Explanation

190*0.5 - 1 = 94
94*0.5 - 1 = 46
46*0.5 - 1 =22
22*0.5 - 1 =10.

Submit
5) 320, 308, 284, 236, 140, ?

Explanation

320-12 = 308
308 - 24 = 284
284-48 = 236
236 - 96 = 140
140 - 192 = -52.

Submit
6) 3, 4, 9, 28, 113, ?

Explanation

3*1+1 = 3+1= 4
4*2 + 1 = 8+1 = 9
9*3 + 1 = 27+1 = 28
28*4+1 = 112+1 = 113
113*5 + 1 = 565 + 1 = 566

Submit
7) 8, 4, 6, 15, ?, 236.25

Explanation

8 * 0.5 = 4
4 * 1.5 = 6
6 * 2.5 = 15
15 * 3.5 = 52.5

Submit
8) 3   4   12   45   198   1005   6066

Explanation

3*1 + 1 = 4

4*2 + 4 = 12

12*3 + 9 = 36 + 9 = 45

45*4 +16 = 196 (given as 198 in the question)

The pattern is *1 + 1 square, *2 + 2 square, *3 + 3 square, etc...

Submit
9) 39  43  51  60  87  110  167

Explanation

This question has a very interesting pattern ,

43 - 39 = 4 = 2*2
51- 43 =8 = 2*2*2
60 - 51 = 9 = 3*3
87 - 60 = 27 = 3*3*3
As we can see that differences between consecutive terms are of the form 2square, 2 cube, 3 square, 3 cube....
So after 87 we should have 87 + 4 square = 87 + 16 = 103 (Given as 110 in the question)
y - 87 = 16 = which implies y = 103
But the number given is 110 and hence 110 is the odd one out .

Submit
10) In the following number series only one number is wrong. Find the wrong number.130   129   154    203   284   405

Explanation

154 - 129 = 25 = 5*5

203 - 154 = 49 = 7*7

284 - 203 = 81 = 9*9

405 - 284 = 121 =11*11

but when we see the first two terms from left side

129 -130 = 1 = 1*1 and hence we can say that the odd term is 130 as it should be 120

Submit
View My Results

Quiz Review Timeline (Updated): Mar 16, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Aug 14, 2017
    Quiz Created by
    Ashwin
Cancel
  • All
    All (10)
  • Unanswered
    Unanswered ()
  • Answered
    Answered ()
20  10  12  15  30  75  225
What will come in place of the question mark (?) in the given number...
95, 115.5, 138, ? , 189
190, 94, 46, 22, ?, 4
320, 308, 284, 236, 140, ?
3, 4, 9, 28, 113, ?
8, 4, 6, 15, ?, 236.25
3   4   12   45   198   1005   6066
39  43  51  60  87  110  167
In the following number series only one number is wrong. Find the...
Alert!

Advertisement