The Pakistani rupee strengthened against the US dollar, appreciating 0.09% during the opening hours of trading in the inter-bank market on Friday. At 10am, the currency was hovering at 280.52, a gain of Re0.24against the greenback. On Thursday, the local unit closed at 280.76. Globally, the US dollar struggled to claw back steep losses on Friday and was on track for a weekly fall, as inve