Question

Angelia planted rose flowers on the boundary of her house.  She has placed the plants 8 cm apart from each other.  If the length of the boundary is 12 m, then how many such plants can be planted​

Answer 1

Given : Angelia planted rose flowers on the boundary of her house.

She has placed the plants 8 cm apart from each other.

the length of the boundary is 12 m,  

To Find : how many such plants can be planted

Solution:

Note:

if length is 8 cm then  2 plants at corners

8/8 + 1 = 2  plants  

if length is 16 cm then 2 plants at corners and one at center

16/8 + 1 = 3 plants

Hence number of plants = length/8  + 1

Length  = 12m = 1200 cm

plants can be planted  = 1200/8 + 1

= 150 + 1

= 151

151 plants can be planted

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Answer 2

Given :-

• Total length of boundary = 12 m.
• Plant placed apart = 8 cm .

To Find :-

• How many such plants can be planted ?

Solution :-

we know that,

• 1 m = 100 cm.

so,

→ Total length of boundary = 12 * 100 = 1200 m.

then,

→ Number od plants that can be planted = (Total length of boundary / Distance between each plant) + 1 = (1200 / 8) = 150 + 1 = 151 (Ans.)

Hence, Total 151 rose flowers were planted by Angelia .

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