Question

2. A school playground is rectangular in shape with length = 120 m and breadth = 90 m. Some
school boys run along the boundary of the playground and make 15 complete rounds in
45 minutes. How much distance did they run during this period.
makes 8 full rounds of​

Answer 1

Given

Length of rectangular playground =120 m

Breadth of rectangular playground =90 m

Hence, the perimeter of rectangular playground can be calculated as follows :

Perimeter =2 (Length + Breadth)

Perimeter =2(120 m+90 m)

=2×210 m

We get,

=420 m

Hence, distance covered by the boy in one round =420 m

Therefore, total distance covered by the boy to complete 15 rounds can be calculated as follows :

Distance =15× Perimetre 

=15×420

We get,

=6300 m

Therefore, distance covered by the boys to completer 15 rounds is 6300 m.

Answer 2

Answer:

120*90=1800 m is the perimeter of the play ground and they make 15 rounds of the ground so 1800*15