Data Interpretation - Pie Charts - Discussion

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?

[A]. 14 : 19
[B]. 19 : 21
[C]. 17 : 21
[D]. 19 : 14

Answer: Option D

Explanation:

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


Tejash Bhavsar said: (Aug 20, 2013)  
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?

Wemimo Prosper said: (Oct 29, 2013)  
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?

Gopal Thakur said: (Jul 20, 2014)  
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.

Sushil said: (Oct 17, 2015)  
Please explain way to calculate the ratios in more detail.

Anuj said: (Sep 3, 2016)  
24700 * 21/100 : 27300 * 14/100 = 19 : 14.

Sarika said: (Jul 20, 2017)  
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?

Manish Sonwane said: (Sep 8, 2017)  
From where you take this 5187 and 3822 values? Explain clearly.

Gauri said: (Oct 18, 2017)  
@ 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.

Sushmitha said: (Apr 27, 2018)  
How 3 came? @Gauri.

Renuka Arvind Chitale said: (Jun 8, 2018)  
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.

Prakash said: (Jul 6, 2018)  
@Renuka.

Here, 100 and 100 get cancelled.

Vidhi said: (Dec 29, 2018)  
From where 3 is coming? Please explain the step.

Vijaya said: (Dec 8, 2019)  
3 is divisible in both D numbers 5187 &3822.

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