Question

An athlete has to run a race of 400m around a rectangular field if the length of the field is 30 and its breadth is 20 metre how many time does she run around the field​

Answer 1

Answer:

perimeter of the rectangular field=

$2 \times (length + breadth) \\ 2 \times (30 + 20)m \\ 100m$

since perimeter is 100m

and distance to be covered is 400m

number of round=

$distance \: to \: be \: covered \div perimeter \\ 400 \div 100m \\ 4rounds$