Question

:3. If its area is 1728 m. find the
per metre.
the area of a rectangular field is 3584 m and its length is 64 m. A boy runs arou
eld at the rate of 6 km/h. How long will he take to go 5 times around it?
verandah is 40 m long and 15 m broad. It is to be paved with stones, each meas
Am by 5 dm. Find the number of stones required.
Find the cost of carpeting a room 13 m by 9 m with a carpet of width 75 cm at th
105 per metre
The cost of carpeting a room 15 m long with a carpet of width 75 cm at 80 per
19200. Find the width of the room.
The length and breadth of a rectangular piece of land are in the ratid of 5:3. If the
f fencing it at 24 per metre is 9600, find its length and breadth.​

Answer 1

Answer:

Answer :

Area of the rectangular field 3584 M2.

Area of rectangle = Length x Breadth

So 64 x Breadth 3584

Breadth 3584/64 56 Mtrs.

Total distance to be ran by the boy = 5 x Perimeter of the rectangula Field

5 x 2(Length + Breadth) = 5 x 2(64 + 56) = 10 x 120 1200 Mtrs.=1.2 Kms.

Speed of the boy = 6 Kms/Hr

So the time the boy will take = 1.2/6 = 0.2 Hrs x 60 12 Mins.

Ans: 12 Mins.