Question
The average of first three numbers of a set of six
numbers is 60 .The average of the second, third and fourth numbers is 20 and the average of the third, fourth and fifth numbers is 30. The average of last three numbers is 40. What is the average of first three and last three numbers of the set?Solution
We are given four conditions involving averages of groups of three numbers from a set of six numbers a,b,c,d,e,f:
We add these equations to get = a+2b+3c+3d+2e+f = 450 Then, using the known sums a+b+c =180 and d+e+f=120, we substitute them into the equation: 180+120+(b+2c+2d+e) = 450 This simplifies to:b+2c+2d+e=150 The total sum of all six numbers is 180+120 = 300. Therefore, the average of the first three and last three numbers is: 300/6 = 50
As per the Insurance Act what is the nature of fire insurance business?
Choose the correctly matched pair/s:
A. Unitary- all powers in the single central government.
B. Parliamentary- Executive is selected...
All of the following are sources of administrative law, EXCEPT:
A desires a Court to give judgment that B shall be punished for a crime which A says B has committed
Fundamental rights are covered under Part________ and ________ Articles of the Constitution.
In which of the following cases it was held that the witness is not bound by the statement made before the relevant authority?
When IT Act 2000 came into effect?
Under the DPDP Act, 2023, who is responsible for determining the purpose and means of processing personal data?
Partner's liability for acts of the firm is___?
Any member shall be entitled to be furnished, within _____________ after he has made a request in that behalf to the company, and on payment of such fee...
Relevant for Exams:
