Question
The average age of a group of 20 students is 40 years.
Two persons of age 35 years and 30 years, left the group and 2 persons of age 40 years and 85 years, joined the group. Find the new average age of the group.Solution
Required average = {(20 × 40) – 35 – 30 + 40 + 85}/20 = 43 years
Which family of birds do ducks belong to?
Farmyard manure is recommended for:
Which of the following soil microorganisms is responsible for fixing atmospheric nitrogen into a usable form for plants?
Black tip of mango is due to:
 In woody plants and many fruits, transpiration takes place from:
Fruits on the basis of respiration can be classified as
Income elasticity of demand for giffen goods is
In Marketing terms, the amount of goods/services purchased by one unit of currency is called _______.
Among the following, Which is not a member of WTO?
Final product of Calvin cycle isÂ