Question

Use the figure showing the layout of a farm house:
(a) What is the area of land used to grow hay?
(b) It costs 91 per m2 to fertilise the vegetable garden. What is the total cost?
(c) A fence is to be enclosed around the house. The dimensions of the house are 18.7 m * 12.6 m. At
least how many metres of fencing are needed?
(d) Each banana tree required 1.25 m² of ground space. How many banana trees can there be in the orchard?
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Answer 1

Answer:

a) For hay,

length of land =$17.8\ m$$

Breadth of land =10.6 m

So, Area of land used to grow hay

=17.8×10.6=188.68m

2

 

(b) For, vegetable garden,

Length =49 m

Breadth =15.2 m

So, Area of vegetable garden

=49×15.2=744.80m

2

Since, cost to fertilize 1m

2

 vegetable garden =Rs.91

Hence, cost to fertilize 744.8 m

2

 vegetable garden

=91×744.80=Rs.67776.8

(c)

House is of dimension (18.7 m×12.6 m).

fence is to be enclosed around the house.

Perimeter of the house =2(l+b)

Hence, total lengths of the fence

2(18.7+12.6)=2×31.3=62.6m

(d)

Area covered by banana orchard =(20×15.7)m=314m

2

 

Since, 1.25sq. area required by 1 banana tree.

Hence, number of banana trees can be fitted in all area of 314m

2

 

=

1.25

314

​

=251.2≈251trees

Step-by-step explanation: