Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 2 (Q.No. 10)
Directions to Solve
Look carefully for the pattern, and then choose which pair of numbers comes next.
10.
75 65 85 55 45 85 35
Answer: Option
Explanation:
This is a simple subtraction series in which a random number, 85, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.
Discussion:
13 comments Page 1 of 2.
Dharani said:
6 months ago
Super, Thanks all for explaining it.
(1)
Arav said:
5 years ago
Anyone, please explain the answer clearly.
Sowmya said:
7 years ago
The series goes like -10, +20, -30, -10, +40, -50, -10, +60.
(5)
Vijay said:
8 years ago
75 65 85 55 45 85 35.
75-65=10,
55-45=10 And here 85 is common after 2 numbers,
35-25=10
Ans:25 85.
75-65=10,
55-45=10 And here 85 is common after 2 numbers,
35-25=10
Ans:25 85.
(11)
PRB said:
8 years ago
Divide the numbers by common factor 5 ( later you can multiply the answer with 5).
So the series becomes- 15,13,17,11,9,17,7_, _.
Now 17( i.e 17 x 5=85 actually) is repeating as 3rd number.
Now consider (15,13).
(11,9) so the difference between first number and second is 2.
So 7, (7-2=5), 17 is the series. Now multiply each by 5 gives 35, 25 ,85.
So the series becomes- 15,13,17,11,9,17,7_, _.
Now 17( i.e 17 x 5=85 actually) is repeating as 3rd number.
Now consider (15,13).
(11,9) so the difference between first number and second is 2.
So 7, (7-2=5), 17 is the series. Now multiply each by 5 gives 35, 25 ,85.
Muskan said:
9 years ago
Can't understand, Can you please explain briefly?
Aditya vamsi said:
9 years ago
10is subtracted from every consequent number and 85 takes the third place.
Then, we get the answer 25 85.
Then, we get the answer 25 85.
RENU NEGI said:
9 years ago
They are very helpful.
Richa said:
1 decade ago
75-10=65
65-10=55
55-10=45
45-10=35
35-10=25
So answer 25 85.
65-10=55
55-10=45
45-10=35
35-10=25
So answer 25 85.
(2)
Parul said:
1 decade ago
75,65,85,55,45,85,35,..
See:
75-65=10 and after this 85.
55-45=10 and after this 85.
Therefore,35-25=10.
Hence answer is (35 25 85).
After two no. with difference of 10 there is 85.
See:
75-65=10 and after this 85.
55-45=10 and after this 85.
Therefore,35-25=10.
Hence answer is (35 25 85).
After two no. with difference of 10 there is 85.
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