Question
In a given population, 20% 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=20 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+20 =40%people People working in flour mills who are suffering from asthma=100-40=60%.
Aluminium Phosphide is used to control stored grain pest _____
‘Centering’. The first cut on a young tea plant is at which of the following:Â
Water is drawn upwards from the water table in a continuous network of pores. This upward movement of water occurs only in saturated soils is called
What is the major limitation of privatized extension services?
The land-related reform enacted to protect tenants from eviction and secure their right to cultivate the land is known as:
Triazines and triazinones inhibit ______
The critical limit for NO3-N (mg/litre) in drinking water (as per WHO standard is:
Khaira disease of rice can be controlled by spraying of ____________ .
Bengal famine in 1943 was caused due to which disease?
The scientific name of the Italian honey bee is
Relevant for Exams:
