Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 4 (Q.No. 12)
Directions to Solve
Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
12.
Look at this series: 4, 7, 25, 10, __, 20, 16, 19, ... What number should fill the blank?
Answer: Option
Explanation:
Two series alternate here, with every third number following a different pattern. In the main series, 3 is added to each number to arrive at the next. In the alternating series, 5 is subtracted from each number to arrive at the next.
Discussion:
27 comments Page 2 of 3.
Sanju said:
2 decades ago
Please tell me how everystep in this qus doing?
(1)
Aarti said:
8 years ago
What is the next number in the series 3, 7, 13, 19? Can anyone tell me?
(1)
RSGHU said:
8 years ago
I didn't understand it. Anyone, can explain me the series?
(1)
Kailash Malav said:
1 decade ago
We obtain second number to add first no+3 =second number then we finding the different number (third no that's25)now forth number +3=Fifth no(i.e 13) then we finding the 20i.e 3rd no-5=20 So we can find the all series every no .it's combination of two series .
(1)
Koushik said:
1 decade ago
The series is taken as 3 numbers as one group i.e. like.
(4, 7, 25) and
(10, _, 20) , .
Observing the first set 4 is added by three to get 7 like that we should add 3 to the 10 to get the answer in the second set.
(4, 7, 25) and
(10, _, 20) , .
Observing the first set 4 is added by three to get 7 like that we should add 3 to the 10 to get the answer in the second set.
(1)
Amit Chauhan said:
1 decade ago
Answer Not Clear Please some one make it clear to understand!
(1)
M.Mareeswari said:
10 years ago
4 7 25 10 ____ 20 16 19.
4 + 3 = 7.
7 + 3 = 10.
10 + 3 = 13.
13 + 3 = 16.
16 + 3 = 19.
The number is added 3. Every third number is different pattern so the correct answer is 13.
4 + 3 = 7.
7 + 3 = 10.
10 + 3 = 13.
13 + 3 = 16.
16 + 3 = 19.
The number is added 3. Every third number is different pattern so the correct answer is 13.
Uday raj said:
10 years ago
4, 7, 25 are the main series n next alternative number is 10 i.e. came by adding 4+3 is 7 and 7+3 is 10 and after 10+3 is 13 after than 25 is taken as last no of main series and we have to less 5 from every last no of main series. Then 25-5 is 20 finally the series is 3, 7, 25, 10, 13, 20, 16, 19, 15.
Pons said:
10 years ago
Every third number is subtracted by 5 i.e 25, 20, -.
And others a follow the pattern of adding 3 with the consecutive numbers, i.e 4, 7, 10, 13, 16, 19-.
And others a follow the pattern of adding 3 with the consecutive numbers, i.e 4, 7, 10, 13, 16, 19-.
Rhytham patel said:
1 decade ago
Not understanding still, explain with other example.
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