Subject: General Aptitude · Chapter: Average · Exam: · Marks: · Difficulty:
Find the average of all prime numbers between 30 and 50.
Answer
Answer (as printed):
Explanation
There are five prime numbers between 30 and 50. They are 31, 37, 41, 43 and 47. $$\text { ∴ Required average }=\left(\frac{31+37+41+43+47}{5}\right)=\frac{199}{5}=39.8 .$$
Explanation as extracted from the printed page; notation may be imperfect.