Question

How many tiles whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 320 cm and 140 cm ? ‌​

Answer 1

QᴜᴇsᴛɪᴏN:-

How many tiles whose length and breadth are 13 cm and 7 cm respectively are needed to cover a rectangular region whose length and breadth are 520 cm and 140 cm ? ‌

AɴsᴡᴇR:-

800 tiles will be needed to cover the rectangular region

ExᴘʟᴀɴᴀᴛɪᴏN:-

Given:-

Length and Breadth of each rectangular tile are 13 cm and 7 cm

Length and Breadth of rectangular region are 520 cm and 140 cm

To find:-

How many tiles will be needed to cover the rectangular region ?

Solution:-

As we know that,

$\underline{\boxed{\sf {Area\:of\:rectangle=(length × breadth)}}}$

Area of each tile = (l × b)

= (13 × 7) cm²

= 91 cm²

Area of rectangular region = (l × b)

= (520 × 140) cm²

= 72800 cm²

Now,

Number of tiles = $\sf{\dfrac{72800}{91}}$

⠀⠀⠀⠀ ⠀⠀⠀⠀⠀ = 800

Therefore, 800 tiles will be needed

Answer 2

Answer:

your answer above

Step-by-step explanation:

hope that helps you. ...