A)
- rate of walking = distance/time
Hence rate of walking should be measured in feet/minute
B)
- rate of painting a wall can be determined by measuring its area
Hence rate of painting should be in sqaure feet per minute
C)
- rate of filling a bucket should be measured by finding its volume
Hence rate of paining is measured in cubic feet per minute
D)
- rate of mopping the kitchen floor is same as painting a wall
Hence rate of mopping should be in sqaure feet per minute