Data Interpretation - Table Charts - Discussion

Discussion Forum : Table Charts - Table Chart 1 (Q.No. 1)
Directions to Solve

Study the following table and answer the questions based on it.

Expenditures of a Company (in Lakh Rupees) per Annum Over the given Years.

Year Item of Expenditure
Salary Fuel and Transport Bonus Interest on Loans Taxes
1998288983.0023.483
19993421122.5232.5108
20003241013.8441.674
20013361333.6836.488
20024201423.9649.498


1.
What is the average amount of interest per year which the company had to pay during this period?
Rs. 32.43 lakhs
Rs. 33.72 lakhs
Rs. 34.18 lakhs
Rs. 36.66 lakhs
Answer: Option
Explanation:

Average amount of interest paid by the Company during the given period

    = Rs. [ 23.4 + 32.5 + 41.6 + 36.4 + 49.4 ] lakhs
5

    = Rs. [ 183.3 ] lakhs
5

    = Rs. 36.66 lakhs.

Discussion:
52 comments Page 4 of 6.

Rahul said:   1 decade ago
I think its very simple there is no need for any shortcut.
(1)

Balaswamy said:   1 decade ago
To find the answer for this question is very easy, How?

Just add all the decimals and divide by 5 (23/5 = 4.6).

So find the answer which has last digit 6, it is none other than answer D (36.66).
(3)

Divyadev said:   1 decade ago
Just read the question and try to understand, you will know what to do.

Aditi said:   1 decade ago
Please tell anyone.

How to know which column is to add?
(1)

Boosa.Appalaraju said:   1 decade ago
Here the table is simple with just 5-7 values.

What if the case is to more than 10 values and the range is less than 15 which is usually in exams like cat and in the latest format of cat it is very tough to manage time as we all know that the time limit is just 1.7minutes.

Then how could we waste the time in adding all those 10-15 numbers.

Is there any shortcuts for adding lot many as I mentioned the range.
(1)

Rajeev said:   1 decade ago
Add the smallest and largest value and divide with 2. you will get nearest value.

Here it is,
(23.4+49.4)/2 gives 36.4 (nearest value).
(2)

Stalin said:   1 decade ago
Venkatesh, said absolutely correct. Take the nearest value which is nothing but 36.4 which is the medium value. I hope you guys understand.

Sandip said:   1 decade ago
Hi @Vinayak.... It's simple.

183.3 * 20
----------
5 * 20

= 3666
------
100

= 36.66.

Hammed Lematia said:   1 decade ago
The method was correct because an average is calculated by summing the column values, and then dividing the sum by the number of values in the column.

The average can be referred to as the Mean Value.

Balluraj said:   1 decade ago
You have to practice regular more and more problems to increase your speed.


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