Logical Reasoning - Number Series - Discussion
Discussion Forum : Number Series - Type 4 (Q.No. 8)
Directions to Solve
Find the number that fits somewhere into the middle of the series. Some of the items involve both numbers and letters
8.
Look at this series: 83, 73, 93, 63, __, 93, 43, ... What number should fill the blank?
Answer: Option
Explanation:
This is a simple subtraction series in which a random number, 93, is interpolated as every third number. In the subtraction series, 10 is subtracted from each number to arrive at the next.
Discussion:
9 comments Page 1 of 1.
M. Mareeswari said:
1 decade ago
73 + 10 = 83.
53 + 10 = 63.
33 + 10 = 43.
The correct answer is 53. The random number is 93.
53 + 10 = 63.
33 + 10 = 43.
The correct answer is 53. The random number is 93.
Charitha said:
10 years ago
The series is 83, 73, 93, 63, -, 93, 43.
Note that 93 will be repeated after every 2 numbers.
83 - 10 = 73.
Ignore 93.
73 - 10 = 63.
63 - 10 = 53.
Ignore 93.
53 - 10 = 43.
So the missing number is 53.
Note that 93 will be repeated after every 2 numbers.
83 - 10 = 73.
Ignore 93.
73 - 10 = 63.
63 - 10 = 53.
Ignore 93.
53 - 10 = 43.
So the missing number is 53.
(1)
Remi said:
9 years ago
Answer C (73) fits the pattern just as good.
This time the pair 73 and 93 repeat in the series and 20 is deducted from each number to create the next one.
i.e. 83 - 20 = 63, 63 - 20 = 43. Does anyone agree with me?
This time the pair 73 and 93 repeat in the series and 20 is deducted from each number to create the next one.
i.e. 83 - 20 = 63, 63 - 20 = 43. Does anyone agree with me?
(2)
Maheswari said:
8 years ago
83, 73, [93], 63,___, [93], 43.
83-10 = 73.
73-10 = 63.
63-10 = 53.
53-10 = 43.
Answer 53.
83-10 = 73.
73-10 = 63.
63-10 = 53.
53-10 = 43.
Answer 53.
(3)
Kinjal said:
8 years ago
Again we have 2 correct options.
If we keep 73, 93 as constant, option C (73) fits in the series and the remaining numbers can therefore be deducted by 40.
If we keep 73, 93 as constant, option C (73) fits in the series and the remaining numbers can therefore be deducted by 40.
(1)
Sahil said:
7 years ago
93 should be constant.
83-10=73 similarly,
63-10=53 is the correct answer.
83-10=73 similarly,
63-10=53 is the correct answer.
(3)
ANUSHA said:
7 years ago
Thank you all for explaining the answer.
(4)
Ashish said:
3 years ago
Thank you everyone.
(6)
Chinmay behera said:
2 years ago
93 Constant.
83 - 10 = 73.
Similarly,
73 - 10 = 63,
63 - 10 = 53,
53 - 10 = 43.
83 - 10 = 73.
Similarly,
73 - 10 = 63,
63 - 10 = 53,
53 - 10 = 43.
(7)
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