The ratio of the walking speeds of three people
v in race walking is 3: 4: 5. if their walking
distances are the same, then the ratio of the
times taken is
a. 3: 4: 5.
b. 9: 16: 25.
c. 16: 15: 9.
d. 20: 15: 12

He trapezoid is composed of a rectangle and two triangles. what is the area of the rectangle? what is the total area of the triangles? what is the area of the trapezoid? ? a) 42 cm2; 27 cm2; 69 cm 2 b) 54 cm2; 27 cm2; 81 cm 2 c) 108 cm2; 27 cm2; 135 cm 2 d) 108 cm2; 13.5 cm2; 121.5 cm 2