App Logo

No.1 PSC Learning App

1M+ Downloads
The average of 11 numbers arranged in an order is 41. The average of the first five numbers is 18 and that of the last five numbers is 64. What is the sixth number?

A41

B45

C55

D64

Answer:

A. 41

Read Explanation:

Sum of 11 numbers = 11 × 41 = 451; Sum of first five numbers = 5 × 18 = 90;

Sum of last five numbers = 5 × 64 = 320; Sixth number = 451 - (90 + 320) = 41.


Related Questions:

The average weight of students in a class was 60.5 kg. When 8 students, whose average weight was 65 kg, joined the class, then the average weight of all the students increased by 0.9 kg. The total number of students now in the class is:
Three years ago the average age of A and B is 18yrs. With the joining of C now, the average becomes 22 yrs. How old is C now?
The average of nine numbers is 60, that of the first five numbers is 55 and the next three is 65. The ninth number is 10 less than the tenth number. Then, tenth number is :
1 മുതൽ 10 വരെയുള്ള ഒറ്റസംഖ്യകളുടെ ശരാശരി എത്ര?
ബാബുവിന് ലക്ഷ്യസ്ഥാനത്ത് എത്തണമെങ്കിൽ ഇനി 186 കിലോമീറ്റർ കൂടി സഞ്ചരിക്കണം. മൂന്ന് മണിക്കൂർ കൊണ്ട് ലക്ഷ്യസ്ഥാനത്ത് എത്തണമെങ്കിൽ ബാബു സഞ്ചരിക്കുന്ന കാറിൻറെ ശരാശരി വേഗത എന്തായിരിക്കണം?