sixty 5 percent of a number is 21 less than 4 fifth of that number . what is the number Choose the most appropriate option
A) 140  B) 165  C) 150  D) 142  E) 174

Rationale: let the number be x . then , 4 * x / 5 – ( 65 % of x ) = 21 4 x / 5 – 65 x / 100 = 21 5 x = 2100 x = 140 . answer a 140
Answer: A