Verbal Reasoning - Series Completion - Discussion
Discussion Forum : Series Completion - Section 1 (Q.No. 5)
Directions to Solve
Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.
5.
125,80,45,20,?
Answer: Option
Explanation:
The pattern is - 45, - 35, - 25, .....
So, missing term = 20 - 15 = 5.
Discussion:
19 comments Page 2 of 2.
Krishna Kumar said:
1 decade ago
Another method :
5*5^2 => 5*25=125
5*4^2 => 5*16=80
5*3^2 => 5*9=45
5*2^2 => 5*4=20
so the next term would be...
5*1^2 => 5*1=5
Hence the next term is obtained as 5.
5*5^2 => 5*25=125
5*4^2 => 5*16=80
5*3^2 => 5*9=45
5*2^2 => 5*4=20
so the next term would be...
5*1^2 => 5*1=5
Hence the next term is obtained as 5.
Ankit mahale said:
1 decade ago
5*5^2 = 125.
5*4^2 = 80.
5*3^2 = 45.
5*2^2 = 20.
5*1^2 = 5.
5*4^2 = 80.
5*3^2 = 45.
5*2^2 = 20.
5*1^2 = 5.
Deepak said:
1 decade ago
5*5*5=125.
4*4*5=80.
3*3*5=45.
2*2*5=20.
1*1*5=5.
4*4*5=80.
3*3*5=45.
2*2*5=20.
1*1*5=5.
Sai ram said:
1 decade ago
Here alternatives 125-45 = 80.
80-20 = 60.
So 45-40 = 5.
80-20 = 60.
So 45-40 = 5.
Naro said:
1 decade ago
25*5=125.
20*4=80.
15*3=45.
10*2=20.
5*1=5.
First number is decreasing by 5 and second number is decreasing by 1.
20*4=80.
15*3=45.
10*2=20.
5*1=5.
First number is decreasing by 5 and second number is decreasing by 1.
Divya said:
1 decade ago
Thank you Vishnu.
It is very easy calculation method.
It is very easy calculation method.
Nishritha said:
1 decade ago
All are divisible by 5
125/5=25
80/5=16
45/5=9
20/5=4
25-16=9
9-4=5
5 is the answer
125/5=25
80/5=16
45/5=9
20/5=4
25-16=9
9-4=5
5 is the answer
Vishnu said:
1 decade ago
Very simple method:
Difference between 125-80=45
80-45=35
45-20=25
so 20-15=5
Difference between 125-80=45
80-45=35
45-20=25
so 20-15=5
Sigamani said:
1 decade ago
Sigamani,
It is a very and easy calcuation method, Thank you.
It is a very and easy calcuation method, Thank you.
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