Boat speed in still water 16.2km/ch, and watercourse speed 1.3km/h. How many kilometers will the boat pass, moving 2 h against the current and 3 h on a watercourse?

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1) (16.2-1.3) *2+ (16.2+1.3) *3=14.9*2+17.5*3=29.8+52.5=82.3 Kmskorost boats on a leak = 16.2+1.3=17.5 km/h against 16.2-1.3=15.6 km/h 15.6*2+17.5*3=83.7 Answer 83 kilometers
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