Question
Quantitative Ability and Data Interpretation Question on Number Systems
The average of 4 distinct prime numbers a, b, c, d is 35, where a<b<c<d. a and d are equidistant from 36 and b and c are equidistant from 34 and a, b are equidistant from 30 and c and d are equidistant from 40. The difference between a and d is:
A
30
B
14
C
21
D
Cannot be determined
Answer
14
Explanation
Solution
The correct option is (B): 14