Help Wanted
Mr. Jensen needed to hire a mathematics tutor for his school. He placed an advertisement in the school newspaper. He wrote the ad in such a way as to attract the most qualified applicants.
MATH TUTOR NEEDED
10 hours per week
If interested please call:
ABC-DEF-GHIJ
Each digit of the telephone number is unique.
A, C, G, and H are prime numbers.
F, I, and J are square numbers.
B,D,E,F, and G are even numbers.
C is a factor of J.
A + D = E + J
What telephone number should interested applicants call?
Reference from Greenes, Carol, Linda Schulman, Rika Spungin, Suzanne Chapin, Carol Findell. Mathletics: Gold Metal Problems. Providence RI: Janson Publications Inc., 1990. p. 7.