Question
The following Venn diagram shows the number of students
who have visited three different cities (Delhi, Mumbai, Chennai). What is the number of students who have visited at least two of the places out of Delhi, Mumbai, and Chennai?Solution
‘At least two places’ means ‘two or more places’. So, three places should also be included to obtain the final answer. 
Therefore, the number of families who have visited at least two of the places = 24 + 18 + 7 + 6 = 55 Hence, the correct answer is (C).
Cultivation of such crop which have different natural habit and zero competition is known as
Lichens, the pioneer organisms that initiate ecological succession are actually a symbiotic association of
“Golden treasure” of Assam is known to which silk
Cultivated bread wheat or common wheat is ____
The law that determines the best uses of limited resources among alternative uses is known as:
The false smut of sugarcane can be controlled by adopting which of the following practice?
Examples of erosion permitting crops are:
Hydrophytes are known as
Dehorning of horned cattle is the process of removal of their horns or the process of preventing their growth. The process of dehorning is accomplished ...
In which of the following stage cell cycle DNA replication take place?
