Data Interpretation - Pie Charts - Discussion

Discussion Forum : Pie Charts - Pie Chart 6 (Q.No. 2)
Directions to Solve

The following pie-charts show the distribution of students of graduate and post-graduate levels in seven different institutes in a town.

Distribution of students at graduate and post-graduate levels in seven institutes:


2.
What is the ratio between the number of students studying at post-graduate and graduate levels respectively from institute S?
14 : 19
19 : 21
17 : 21
19 : 14
Answer: Option
Explanation:

Required ratio = (21% of 24700) = (21 x 24700) = 19 .
(14% of 27300) 14 x 27300 14

Discussion:
15 comments Page 1 of 2.

Johnny sins said:   1 month ago
@All,

Here is a shortcut.
Here you can simply divide No of PG(21% of 24700)/No of Grad.(14% of 27300),
since X:Y = X/Y.
After that, you will have an answer in decimal, which will be 1.357.
Now all you have to do is check the ratios in Option.
And the answer is, Option D, 19:14 = 19/14 = 1.357.

GAURI said:   8 years ago
@ GOPAL, SARIKA & MANISHA.

P.G from Institute S = 24700*(21/100) = 247*21 = 5187.
Grad. from institute S = 27300*(14/100) = 273*14 = 3822.
P.G./Graduate = 5187/3822 {DIVIDE 5187 & 3822 BY 3} = 1729/1274 {DIVIDE 1729 &1274 BY 91} = 19/14.
(5)

Sarika said:   8 years ago
Divide 5187 and 3822 by 3 you will get 1729 and 1274. Then add units of each number i.e.,1+7+2+9 = 19 and 1+2+7+4 = 14.

Thus Ratio between PG and Grad of Institute S is 19:14.

@Gopal.
From where does this 3 comes from?
(6)

Tejash Bhavsar said:   1 decade ago
I would like to understand that what is actual method to calculate ratio,

Here I would like to add that 21*24700/14*27300 = to come different figure.

So please let me know that should be ideally calculated?

Gopal Thakur said:   1 decade ago
Divide 5187 and 3822 by 3 you will get 1729 and 1274. Then add units of each number i.e.,1+7+2+9 = 19 and 1+2+7+4 = 14.

Thus Ratio between PG and Grad of institute S is 19:14.

Wemimo prosper said:   1 decade ago
How or what quick method can we use or know that it is 273 that will divide 5187 and 3822 to give us 19:14. Quickest way of solving ratio?

RENUKA ARVIND CHITALE said:   7 years ago
How the 21 comes we write 21% of 24700 so we do 21/100*24700 instead of this we doing 21*24700 how this possible? Please explain.

Manish Sonwane said:   8 years ago
From where you take this 5187 and 3822 values? Explain clearly.

Sushil said:   10 years ago
Please explain way to calculate the ratios in more detail.

Vidhi said:   7 years ago
From where 3 is coming? Please explain the step.


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