Verbal Reasoning - Series Completion - Discussion

Discussion Forum : Series Completion - Section 1 (Q.No. 1)
Directions to Solve

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.


1.
120, 99, 80, 63, 48, ?
35
38
39
40
Answer: Option
Explanation:

The pattern is - 21, - 19, - 17, - 15,.....

So, missing term = 48 - 13 = 35.

Discussion:
32 comments Page 2 of 4.

Lakhlendra Gangwar said:   1 decade ago
11*10 = 110+10 = 120.
10*9 = 90 +9 = 99.
9*8 = 72 +8 = 80.
8*7 = 56 +7 = 63.
7*6 = 42 +6 = 48.
6*5 = 30 +5 = 35.
(3)

PradeePa said:   1 decade ago
The given series is 120,99,80,63,48.... the difference between the series is ie 120-99=21... like this 99-80=19;

17, and 15... the main diff b/w the answer is 2 for all so at the end 63-48 we got 15 so 15-2=13 there fore 48-13=35.

So simple.
(2)

Saranya said:   8 years ago
-21, -19, -17, -15, -13.

So here 48-13=35.
(2)

Ram said:   1 decade ago
11*11-1 = 120.
10*10-1 = 99.
9*9-1 = 80.
8*8-1 = 63.
7*7-1 = 48.
6*6-1 = 35.
(2)

Sam said:   1 decade ago
Hi all,
I got correct answer like this,
120 - 80 = 40
99 - 63 = 36
80 - 48 = 32
63 - x = 28

so x is 35. All differences vary with a value of 4 in decreasing order. I know its too complicated. But reasoning
never results with one exact answer. We can have arrive at different possible answer(s).
(2)

Hamid iqbal said:   1 decade ago
99 to 21:120.
80 to 19:99.
63 to 17:80.
48 to 15:63.

So the 35 plus 13: 48.
(1)

NAGESH MUPPALLA said:   1 decade ago
Jans your metheod is very easy.

Santoshi said:   1 decade ago
How come -21, -19, -17, and -15? Explain in detail.

Balu said:   1 decade ago
The given series are in the forms
11*11=121-1=120
as follows
7*7=49-1=48
so
6*6=36-1=35

Pallab said:   1 decade ago
Both pattern is right.


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