Two boats A and B are rowing in two different rivers M and N respectively. Find the distance covered by boat B in 12 hours downstream. i) Boat A can cover 360 km downstream in 6 hours while B can cover 96 km upstream in 4 hours. ii) Speed of streams (M +

• N = 7 km/hr iii) Distance cover by B in y hours downstream is 150 km more than the distance cover by B in (v+5) hours upstream.