The sum of all the prime numbers from 1 to 20 is · ABC26GN0117

Subject: General Aptitude · Chapter: Number System

The sum of all the prime numbers from 1 to 20 is

(a)75

(b)76

(c)77

(d)78

Answer

Answer (as printed): C

Explanation

Sum of all prime numbers from 1 to $20=(2+3+5+7$ $+11+13+17+19)=77$.

Explanation as extracted from the printed page; notation may be imperfect.

Study loop for Number System