In 1990 the budgets for projects Q and V were $660,000 and $780,000, respectively. In each of the next 10 years, the budget for Q was increased by $30,000 and the budget for V was decreased by $10,000. In which year was the budget for Q equal to the budget for V ?
1992
1993
1994
1995
1996
检查审题:一个decrease一个increase
又想当然式做题了...decrease!!!!要验算!要看清楚!!!
decrease!!!
题目看错
a1是1990年,a4是1993年·····
decreased。。。没看清