Question
The average of 20 numbers is 75. The average of the
first 12 numbers is 80, while the average of the last 11 numbers is 68. If the 12th number is removed, what will be the average of the remaining 19 numbers?Solution
ATQ, Sum of 20 numbers = 75 × 20 ⇒ 1500 Sum of first 12 numbers = 80 × 12 ⇒ 960 Sum of last 11 numbers = 11 × 68 ⇒ 748 Let the 12th number be x Sum of 20 numbers = Sum of first 12 numbers + Sum of last 11 numbers - 12th number ⇒ 1500 = 960 + 748 - x ⇒ 1500 = 1708 - x ⇒ x = 1708 - 1500 ⇒ x = 208 Sum of remaining numbers = 1500 - 208 ⇒ 1292 Remaining numbers = 19 Average of remaining numbers = 1292 / 19 ⇒ 68
Which of the following is prepared for each job regardless of the time taken for the completion of the job?
__________ is a theory according to which the interest rate differential between two countries is equal to the differential between the forward exchange...
In the structure of the Payments Regulatory Board (PRB), who holds a casting vote in case of a tie?
Consider the following Statements and choose the option with correct Statements.
I- PM Kisan is a Central Sector Scheme to supplement the finan...
Which of the following is not a feature of the cellular manufacturing?
What are the factors that may cause NBFCs to restructure or reschedule project loans?
“State of the Economy” report was released by which regulatory body in India?
Which of the following statements correctly reflects the requirements regarding the maximum number of directorships an individual can hold as per the Co...
Which of the following financial centers ranks first in the Global Financial Centres Index (GFCI) 35?
What would be the treatment of following in the process account?
Opening Stock of Materials50000
Purchases           ...
