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; denominator. If 3 ts addeg ;, the 2 pind the original fractio, , decreased by 4 q,, , , , , , , , , , ngth is, ceeds its breadth by 7. cm. oe is the same as the area, , 3.cm, the area of the new eave rectangle., fe. Find the length and the ee perimeter 1s 160 metres, fing,, : ds its length. le, tangle is two-thir, f the rectangle. onding base. If the altitude 3., triangl thirds the length of its corresP triangle remain,, iy a cm Ee eS ceacacel by 2 cm, the area of the 6 S th, ] d the altitude of the triangle., ne. Find the base an : 5. If the sum of these angles is equal to the thiry, 18. Two angles of a triangle are in the ratio 4 : 5., angle, find the angles of the triangle., : 19. A steamer goes downstream from one port to another in 9 hours. It covers the san,, , _ distance upstream in 10 hours. If the speed of the stream be 1 km/h, find the speed of th., steamer in still water and the distance between the ports., , 20. The distance between two stations is 300 km. Two motorcyclists start simultaneously from, these stations and move towards each other. The speed of one of them is 7 km/h more than, , that of the other. If the distance between them after 2 hours of their start is 34 km, find the 6., speed of each motorcyclist. Check your solution., , 21. Divide 150 into three Parts such that the second number is five-si i, -sixths the fi, number is four-fifths the second. a