A number whose fifth part increased by 7 is equal to its fourth part diminished by 7 is ?	Select:
A) 160 B) 180 C) 200 D) 280 E) None
Answer   Let the number be N.   Then, (N/5) + 7 = (N/4) - 7   â‡’ (N/4) - (N/5) = 14   â‡’ (5N - 4N)/20 = 14   âˆ´ N = 280   Option: 280
<result>D</result>
A number whose fifth part increased by 7 is equal to its fourth part diminished by 7 is ?