Question
Class X has 30 students with an average score of 72
marks. Class Y has 20 students with an average score of y marks. The combined average score of all 50 students (both classes together) is 70 marks. What is the average score of Class Y?Solution
ATQ, Sum of marks in Class X = 30 × 72 = 2160 Let sum of marks in Class Y = 20y Total sum for both classes = 2160 + 20y Combined average = 70 for 50 students: (2160 + 20y) / 50 = 70 2160 + 20y = 3500 20y = 1340 y = 1340 / 20 = 67 Average of Class Y = 67.
What must an authority do if they are about to search a person and that person requests it?
Which Article of the Constitution Of India states that. It shall be the duty of the Prime Minister to communicate to the President all decisions of the...
The positivist school postulates that
What do "shares" refer to as per the definition given under section 2 of the Competition Act?
Limitation act was enacted in the year:
What does "enterprise" include?
According to Sales of Goods Act, 1930 “ mercantile agent ” means a mercantile agent having in the customary course of business as such
To whom can a banking company appeal against the Reserve Bank's decision to cancel its license?
Section 9(3) of the Environment (Protection) Act, 1986 allows recovery of remedial expenses together with interest at such reasonable rate as the Govern...
Under Section 2(v)(i) of the Foreign Exchange Management Act, 1999, which of the following persons is EXCLUDED from the definition of "Person Resident i...
