App Logo

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:

A library has an average of 265 visitors on Sundays and 130 visitors on other days. The average number of visitors per day in a month of 30 days beginning with a Monday is:
The average of 16, 26, 36 is .....
If the average of 5 observations x, x+1, x+2, x+3 and x+4 is 24, then the average of last 2 observations is?
The average runs given by a bowler in 6 matches is 36 and in the other 5 matches is 20.5. What are the average runs given by the bowler in these 11 matches?
The average temperature for Monday, Wednesday and Friday was 41°C. The average for Wednesday, Friday and Thursday was 42°C. If the temperature on Thursday was 43°C, then the temperature on Monday was: