App Logo

No.1 PSC Learning App

1M+ Downloads
The average of 11 results is 60. If the average of the first 6 results is 59 and that of the last six is 62. Find the sixth result?

A56

B42

C66

D74

Answer:

C. 66

Read Explanation:

Total of 11 results = 11 x 60 = 660 Total of first 6 results = 6 x 59 - 354 Total of last 6 results = 6 x 62 = 372 Sixth number = (354 + 372) = 660 = 726-660 = 66


Related Questions:

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 –
The average of eight numbers is 20. The average of five of these numbers is 15. The average of the remaining three numbers is
The sum of 8 numbers is 696. Find their average
There are two coaching classes P and Q of an institute, consisting of 46 and 54 candidates respectively. If the average weight of class P is 50kg and that of class Q is 45 kg, find the average weight of the whole institute.
വാർഷിക പരീക്ഷയിൽ അമ്മുവിന് കണക്ക്, സയൻസ്, മലയാളം, ഹിന്ദി, ഇംഗ്ലീഷ് എന്നീ വിഷയങ്ങൾക്ക് കിട്ടിയ മാർക്കുകൾ യഥാക്രമം 32,45,50,28,40 എന്നിവയാണ്.എങ്കിൽ അമ്മുവിന് കിട്ടിയ ശരാശരി മാർക്ക് എത്ര?