Question

length of a rectangular field is 375m and width is 125m reena runs around this field 2 times how far did she run how many times she should run around the field to cover a distance of 3km​

Answer 1

Mark in the brainliest

Answer 2

Answer:

Reena covered 2km by taking 2 rounds of the field.

To cover 3 kilometers Reena needs to cover 3 rounds.

Step-by-step explanation:

Given :

Length = 375 m

Width = 125 m

Runs around the field = 2 times

To find :

Distance covered by Reena

Rounds to be made to cover 3 km

Solution :

★ $\textsf{\underline{\underline{Distance Covered by Reena -}}}$

First find the perimeter, and then multiply by the number of rounds taken by Reena.

$\bigstar \: \boxed{\sf{Perimeter = 2(Length + Breadth)}}$

$\sf{\implies} \: 2(375 + 125) \\ \\ \sf{\implies} \:2(500) \\ \\ \sf{\implies} \:1000$

Perimeter = 1000 m

$\rule{300}{0.5}$

Distance covered -

$\sf{\implies} \:1000 \times 2 \\ \\ \sf{\implies} \:2000 \: m \:$

$\rule{300}{0.5}$

Convert it into kilometres

$\bigstar \: \boxed{\sf{\:1km \: = 1000m}} \\ \\ \sf{\implies} \: \dfrac{2000}{1000} \\ \\ \sf{\implies} \:2$

$\therefore$ Reena covered 2km by taking 2 rounds of the field.

$\rule{300}{1.5}$

★ $\textsf{\underline{\underline{Rounds to cover 3km - }}}$

One round = 1000 m (1 km)

3 kilometres covered -

$\sf{\implies} \: \dfrac{3}{1} \\ \\ \sf{\implies} \:3$

$\therefore$ To cover 3 kilometers Reena needs to cover 3 rounds.