Challenger App

No.1 PSC Learning App

1M+ Downloads
The average of prime numbers between 20 and 40 is _____ .

A20

B30

C25

D35

Answer:

B. 30

Read Explanation:

23,29,31,37 average= (23 + 29 + 31 + 37)/4 = 120/4 = 30


Related Questions:

In three numbers, the first is twice the second and thrice the third. If the average of three numbers is 99, then the first number is?
65 കിലോ ഭാരമുള്ള ഒരാളെ മാറ്റി പുതിയ ആളെ നിയമിക്കുമ്പോൾ 8 ആളുകളുടെ ശരാശരി ഭാരം 1.5 ആയി വർദ്ധിക്കുന്നു. പുതിയ ആളുടെ ഭാരം എന്തായിരിക്കാം.
The average marks of 32 boys of section A of class:X is 60 whereas the average marks 40 boys of section B of class X is 33. The average marks for both the sections combined together
The average of 5 consecutive number is n. If the next two consecutive numbers are also included, then the average will .....
The average of 25 numbers is 15 and the average of first five numbers is 35. What is the average of remaining numbers?