Previous Year Questions

Question :

Directions : Study the data carefully and answer the following questions:

Below data is given regarding the number of patients who tested positive for COVID-19 in four hospitals (A, B, C and D) in four weeks of a month. Total number of patients who tested positive for COVID-19 in all four hospitals together in all the four weeks of the month together is 50 thousands.

In Hospital A: The ratio of number of patients who tested positive for COVID-19 in 1^st, 2^nd and 3^rd week is 3: 2: 4 respectively. The number of patients who tested positive for COVID-19 in 4^th week is equal to the number of patients who tested positive for COVID-19 in 2^nd week of hospital B.

In Hospital B: In week 3^rd, the number of patients who tested positive for COVID-19 is 500 less than that in hospital D. The number of patients who tested positive for COVID-19 in 1^st week is 1000 more than the number of patients who tested positive for COVID-19 in 2^nd week. The number of patients who tested positive for COVID-19 in 4^th week is half of the number of patients who tested positive for COVID-19 in 2^nd week in hospital A. The number of patients who tested positive for COVID-19 in all the four weeks together is 1500 more than the total number of patients who tested positive for COVID-19 in 1^st week in hospital C.

In Hospital C: The number of patients who tested positive for COVID-19 in 2^nd week is thrice of the number of patients who tested positive for COVID-19 in 1^st week in hospital D. The number of patients who tested positive for COVID-19 in 3^rd week is 25% of number of patients who tested positive for COVID-19 in 2^nd week. The number of patients who tested positive for COVID-19 in 4^th week is equal to the number of patients who tested positive for COVID-19 in 3^rd week in hospital B. The number of patients who tested positive for COVID-19 in 1^st week is 87.5% more than the number of patients who tested positive for COVID-19 in 3^rd week in hospital A. The number of patients who tested positive for COVID-19 in all the four weeks together is 36% of total number of patients who tested positive for COVID-19 in all the four hospitals in all the four weeks together.

In Hospital D: The ratio of number of patients who tested positive for COVID-19 in 1^st, 2^nd, 3^rd and 4^th week is 4: 8: 7: 5 respectively.

What is the percentage of number of patients who tested positive for COVID-19 in all the four hospitals in 2^nd week out of total number of patients who tested positive for COVID-19 in all the four weeks in all the four hospitals together?