Data Interpretation - Pie Charts - Discussion

Discussion Forum : Pie Charts - Pie Chart 6 (Q.No. 4)
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:


4.
What is the ratio between the number of students studying at post-graduate level from institutes S and the number of students studying at graduate level from institute Q?
13 : 19
21 : 13
13 : 8
19 : 13
Answer: Option
Explanation:

Required ratio = (21% of 24700) = (21 x 24700) = 19 .
(13% of 27300) 13 x 27300 13

Discussion:
13 comments Page 1 of 2.

Shivaji said:   1 year ago
How we are simplifying the ratios?

Anyone, please explain to me.

Tashi Dorji said:   3 years ago
273 x 19 = 5187 (21 ÷ 100 * 24700 = 5187).
273 x 13 = 3549 (13 ÷ 100 * 27300 = 3549).

Karma said:   3 years ago
21/100*24700= 5187 for postgraduate.
13/100*27300= 3549 for graduate level.

The ratio will become 5187: 3549.
If you divide 5187 by 3= 1729.
Also, divide 3549 by 3= 1183.

Further, divide 1729 by 91= 19.
Also, divide 1183 by 91= 13.

See, 91*19 = 1729.
91*13 = 1183.

So, the last simplified ratio will become 19:13.
(3)

Ram said:   7 years ago
Graduate students number is 27300.

Post graduate student number is 24700.

Sanju said:   9 years ago
Please give me exact calculation without using the calculator.

Liz said:   10 years ago
Why is it 13% instead of 14% on the pie graph?

Sushil said:   10 years ago
Please tell how would we calculate ratio for 393/933?
(1)

Tausif said:   1 decade ago
@Lovely but this is not true for all cases. May please provide logical details.

Lovely said:   1 decade ago
21/100*24700:13/100*27300.

= 5187:3549 (Divide both sides by 3).

= 1729:1183.

= (1+7+2+9) : (1+1+8+3).

= 19:13.
(2)

Hima said:   1 decade ago
(21%24700/13%27300) = (19%13).


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