Question
In each population, 30% of the population is affected
with asthma out of which 90% of asthma patients used to work in flour mills. If 30% of the total population was working in flour mills, then what will be the percentage of the people working in flour mills who are suffering from asthma?Solution
Let the total population =100. Affected with asthma=100×20/100=30 Asthma patients used to work in flour mills=100×90/100=90. Working in flour mills =100×30/100=30. People who suffer from asthma but do not work in flour mills=90- [30+30] =30%people People working in flour mills who are suffering from asthma=100-30=70%.
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
5999.93 ÷ 60.005 × 70.002 = ? × 24.9
?% of 309.99 = 40.01% of 249.99 + 295.98% of 49.99
16.11 × 9.96 – (238.19 – 64.04 × 2.18) = ?
20.06% of 359.89 - 15.95 X ? + 18.07 X 14.95 = 48.87 X 6.02
2550.03 ÷ 74.98 x 49.9 = ? + 20.32
56237.05 + 10616.99 - 137.25 + 1795.33 = ?
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
30.33% of 440.08 + 45.09 × 5.998 – √961.09 × 3.990 – 189.99 = ?
44.87% of (39.85 × ?) – 1520.88 0.51 = 1400.8
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