Challenger App

No.1 PSC Learning App

1M+ Downloads
The average of marks secured by 35 students is 72. If the marks secured by one student was written as 36 instead of 86 then find the correct average.

A73.4

B75.2

C73.8

D72.7

Answer:

A. 73.4

Read Explanation:

Average marks of 35 sutdents=72 sum of marks=72x35=2520 Correct sum=2520-36+86=2570 Correct average-2570/35=73.4


Related Questions:

When 2 is subtracted from each of the given n numbers, then the sum of the numbers so obtained is 102 . When 5 is subtracted from each of them, then the sum of the numbers so obtained is 12. What is the average of the given n numbers?
നാല് സംഖ്യകളുടെ ശരാശരി 10 ആണ്. 5, 9 എന്നീ സംഖ്യകൾ കൂടി ഉൾപ്പെടുത്തിയാൽ പുതിയ ശരാശരി എത്ര?
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?
The sum of five numbers is 655. The average of the first two numbers is 76 and the third number is 103. Find the average of the remaining two numbers?
8 കുട്ടികളുടെ ഉയരങ്ങളുടെ മാധ്യം 152 cm. ഒരു കുട്ടികൂടി വന്നുചേർന്നപ്പോൾ മാധ്യം 151 cm . വന്നു ചേർന്ന കുട്ടിയുടെ ഉയരം എത്ര?