Q2:
Guy’s net income equals his gross income minus his deductions. By what percent did Guy’s net income change on January 1, 1989, when both his gross income and his deductions increased?
(1) Guy’s gross income increased by 4 percent on January 1, 1989.
(2)Guy’s deductions increased by 15 percent on January 1, 1989.
這題為什麼答案不是 C呢??
知道gross income 及deduction 的percent increase 不就能知道Net income
的percent increase 了嗎??
我一定又是那裡觀念又偏差....請大大們救救我吧!! :'(