In 1990 the budgets for projects Q and V were $500,000 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 ? Options:
A) 1992
B) 1993
C) 1994
D) 1995
E) 1997

Rationale: "let the no of years it takes is x . 500 + 30 x = 780 - 10 x - - > 40 x = 280 and x = 7 . thus , it happens in 1997 . e ."
Answer: E