When 732 is subtracted form the square of a number, the answer that is obtained is 5280. What is the number? Answers:
A) 228
B) 103
C) 286
D) 122
E) 102

Rationale: explanation : let the number be x x 2 - 732 = 5280 x 2 = 5280 + ( 70 + 3 ) 2 = 5280 + 4900 + 420 + 9 = 10609 = 10000 + 2 ( 100 ) ( 3 ) + 32 = ( 100 + 3 ) 2 x = 100 + 3 = 103 . answer : b
Answer: B