Answer
Verified
480.3k+ views
Hint: An arithmetic progression is a sequence of numbers such that the difference of any two successive members is a constant. Use the formula of the general term to find the value of n in this question.
Using the formula of general term in this question, \[{T_n} = a + \left( {n - 1} \right)d = 0\]
We get,
\[{T_n} = 121 + \left( {n - 1} \right)\left( { - 4} \right) = 0\]
Therefore, on solving this becomes,
\[n = \dfrac{{121}}{4} + 1\]
On further solving,
We get,
\[n = 31.25\]
Note: Since 31.25th term does not exist, make sure to round off the number to the nearest number.
This clearly means the value of can be taken roughly as \[32\],
Therefore,
\[n \approx 32\]
Using the formula of general term in this question, \[{T_n} = a + \left( {n - 1} \right)d = 0\]
We get,
\[{T_n} = 121 + \left( {n - 1} \right)\left( { - 4} \right) = 0\]
Therefore, on solving this becomes,
\[n = \dfrac{{121}}{4} + 1\]
On further solving,
We get,
\[n = 31.25\]
Note: Since 31.25th term does not exist, make sure to round off the number to the nearest number.
This clearly means the value of can be taken roughly as \[32\],
Therefore,
\[n \approx 32\]
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
In Indian rupees 1 trillion is equal to how many c class 8 maths CBSE
Which are the Top 10 Largest Countries of the World?
How do you graph the function fx 4x class 9 maths CBSE
Give 10 examples for herbs , shrubs , climbers , creepers
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Why is there a time difference of about 5 hours between class 10 social science CBSE