Question
In an examination, the average marks obtained by the
students is 60. After correcting the quantitative mistakes, the average of 100 students is reduced to 45 from 60 and the overall average of the student is reduced to 50. Then find the total number of students who participated in that examination.Solution
Let the total number of students be x Average marks obtained by the students = 60 Total marks = 60x After correcting the quantitative mistakes the average decreased by (60-45) = 15 marks Total reduction = 15 × 100 = 1500 Now According to the Question, (60x-1500)/x = 50 (60x-1500)= 50x
In a typical demand schedule, quantity demanded varies
Which of the following is/are the causes of demand curves moving downwards to the right?
OPEC is an example ofÂ
Elasticity of demand is based on which of the following factors?
A firm maximizes its profit when
A movement along a demand curve indicates that a different quantity is being demanded
This movement is due to
When price elasticity of demand is unity, the total expenditure:
A table indicating various levels of demand at various prices is termed as
The positive cross elasticity of demand between two products means the two products
Shifts in demand curve as shown in the figure below represents