Study the given tables and answer the question that follows.
The tables show the number of candidates (in lakh) appearing in an entrance exam from four different cities and the ratio of candidates passing and failing in the same.

City	P	Q	R	S
Number of candidates	1.10	2.26	2.12	1.46

Ratio of candidates passing and failing within the city:

City	Passing	Failing
P	6	5
Q	3	7
R	5	7
S	3	5

The number of candidates passing the exam from city Q is what percentage of the total number of candidates appearing from all the cities together (rounded off to 2 decimal places)?

Correct option is D

Given:
Number of candidates appearing from city Q = 2.26 lakh

Passing to failing ratio in city Q = 3:7​​

Formula Used:

If the passing: failing ratio is a : b, then total parts = a + b,

Passing candidates =$$\frac{a}{a + b} \times$$​ Total candidates

Percentage = $$\left( \frac{\text{Part}}{\text{Whole}} \right) \times 100$$​​
Solution:

Total candidates from all cities

​$$= 1.10 + 2.26 + 2.12 + 1.46 = 6.94 \text{ lakh}$$​

Passing from city Q

Ratio passing: failing = 3:7 → total parts = 10

Passing candidates = $$\frac{3}{10} \times 2.26 = 0.678 \text{ lakh}$$​

Required percentage;

=$$\frac{0.678}{6.94} \times 100 = 9.77\%$$​

The required percentage is 9.77%.