Question

if a man is running in the rectangle shaped park whose area is 110m and his speed is 20km/hr then how much distance will he cover in 30 minutes if length is 12m and also find the breadth of the park



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Answer 1

$\huge\mathbb{\underline{SOLUTION:-}}$

FIRST WE FIND PERIMETER OF RECTANGLE

Length=120m

Breadth=80m

Perimeter= 2(L+B)

                = 2(120+80)

                = 2(200)

                = 400m

AN ATHLETE TAKE 5 ROUNDS OF RECTANGULAR PARK i.e. HE TAKE 5 ROUNDS OF PERIMETER

NOW,

Distance Covered By An Athlete = 5 x (PERIMETER)

                                                     = 5 x 400

                                                     = 2000m

AN ATHLETE COVERED 2000m OR 2km DISTANCE.

Answer 2

Answer:

breadth of the park

Step-by-step explanation:

total area A=L x B

A=110

L=12

SO, B=A/L

=110/12

=9.17M.

didtance= speed x time

speed = 20km/hr =20 x 5/18 =5.56m/s.

time = 30 min=30 x 60 =1800sec.

distance covered = 5.56 x 1800 /1000 =10 km