The rupee is valued at 50 paise against the dollar until it closes at 72.50 on Friday. Dollar sales by exporters support the rupee, analysts said. The dollar, which has weakened following the results of the US midterm election, launched a recovery after the Federal Reserve kept interest rates unchanged but indicated a rise next month. Meanwhile, crude oil prices continued to move down for 10 consecutive days to reach a seven-month low. With Friday's rise of 0.7 percent, the rupee reversed most of the losses registered during the short holiday week.