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 1 of 3.
Aryan said:
2 years ago
3, 7, 25, 10, __, 20, 16, 19
3, 7, 25
7 + 3 = 10,
10+3=13,
25-5=20.
13+3=16,
16+3=19,
20-5=15.
Therefore: 3, 7, 25, 10, 13, 20, 16, 19, 15
3, 7, 25
7 + 3 = 10,
10+3=13,
25-5=20.
13+3=16,
16+3=19,
20-5=15.
Therefore: 3, 7, 25, 10, 13, 20, 16, 19, 15
(16)
Vamsi said:
5 years ago
4, 7, 25, 10, __, 20, 16, 19, ... (TWO set of series).
4, 4+3=7, 7+3=10, 10+3=13, 13+3=16---> 4,7,10,13,16 13 is the right answer.
4, 4+3=7, 7+3=10, 10+3=13, 13+3=16---> 4,7,10,13,16 13 is the right answer.
(10)
Nandita said:
4 years ago
I am not getting it clearly could anyone help?
(8)
KadAM said:
9 years ago
1st series 4 7 10 13 16 19.
2nd series 25 20 15 10.
So, the answer is 13.
2nd series 25 20 15 10.
So, the answer is 13.
(4)
Anu said:
5 years ago
Not getting clearly, anyone please help me by explaining this in detail.
(3)
Sathishporayi said:
2 decades ago
Example
(4,7,25) 1st set
(10,_,20) 2nd set
in this see 1st set
4 is added with 3 get 7
25 is subtract with 5 get 20, 20 is 2nd set of 1ast no.
like that 10 is add with 3 get final answer 3
(4,7,25) 1st set
(10,_,20) 2nd set
in this see 1st set
4 is added with 3 get 7
25 is subtract with 5 get 20, 20 is 2nd set of 1ast no.
like that 10 is add with 3 get final answer 3
(2)
Arun said:
3 years ago
Thanks Everyone for explaining the answer.
(2)
Vairamuthu said:
9 years ago
4 + 6 = 10,
10 + 6 = 16,
25 - 5 = 20,
20 - 5 = 15,
7 + 6 = 13,
13 + 6 = 19.
10 + 6 = 16,
25 - 5 = 20,
20 - 5 = 15,
7 + 6 = 13,
13 + 6 = 19.
(2)
Sidhant Shrivastava said:
9 years ago
Q = 4, 7, 25, 10, ?, 20, 16, 19.
Solution:
Firstly for the first portion i.e.
=> 4, 7, 10, ?, 16, 19.
=> The pattern is 1+3=4, 4+3=7, 7+3=10, 10+3=13, 13+3=16, 16+3=19.
While 25 and 20 are following the different pattern i.e. every 3rd number is subtracted by 5 and so on.
Solution:
Firstly for the first portion i.e.
=> 4, 7, 10, ?, 16, 19.
=> The pattern is 1+3=4, 4+3=7, 7+3=10, 10+3=13, 13+3=16, 16+3=19.
While 25 and 20 are following the different pattern i.e. every 3rd number is subtracted by 5 and so on.
(2)
Adarsh said:
2 years ago
I'm not getting this clearly. Please explain me in detail.
(1)
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