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Let the speed of the stream be ‘x’ km/hr Therefore, speed of the boat in still water = 11x km/hr Upstream speed of the boat = 11x – x = 10x km/hr Downstream speed of the boat = x + 11x = 12x km/hr According to the question, 12x – 10x = 20 => 2x = 20 => x = 10 Therefore, upstream speed of the boat = 10x = 100 km/hr Required time taken = 200/100 = 2 hours
What was the theme for Nasha Mukt Bharat Abhiyaan Run on the occasion of international day against drug abuse this year?
What was the primary method used by researchers to confirm the lunar cave?
Moody’s upgraded ICICI Bank and Axis Bank’s baseline credit assessments (BCA) to _______.
How many billion in loans have been approved by the World Bank for PM ABHIM?
On which days of the Tibetan Lunar Calendar is the Kagyed Dance Festival celebrated?