Question

How many rounds a boy will take for running 500 metres around as
inning 500 metres around a square field
having side 25 m ?
2. Length of a rectangular field is 120 m and breadth is 75 m. How many metres of wire
will be required for fencing around it ?
3. If the cost of 1 m fencing is 3.80, find the cost of fencing around a square of 196 m
side.
4. Length of one side of a square is double of the second square. How much more will
be the perimeter of first square than that of the second square ?​

Answer 1

Step-by-step explanation:

1. Answer is 5 rounds,500/perimeter of the square field i.e. 100 so,500/100=5
2. 390m wire is will be required for fencing because perimeter of the rectangular field is 2(l+b) i.e. 2(120+75)=390m
3. Perimeter of square field =196×4=784m.cost of fencing of 1m=Rs.3.80 so,cost of fencing of 784m=784×3.80=Rs.2979.2
4. perimeter of second square will be 4× of first square