If he decorates five rectangular display boards each of
dimension 3m and 2m by pasting the ribbon along their borders, then find
the length of the remaining ribbon?
Answers
We have the dimensions of the wall and
the dimensions of the door-frame. Let us
first find out the area of the wall which
needs to be painted.
=Area of the wall length of the wall ~
breadth of the wall
= 10 x 10
=100 m²
Now, here we have the area of the wall as 100 sq. meters.
Further, now let us calculate the area of
the door-frame which occupies 3m x 2m
of the space on the wall.
Area of the door frame = length of the
door-frame x breadth of the door-frame
= 3x2
= 6m²
Here, we have the area of the door frame as 6 sq. meters.
Now to find the area which needs to
be painted, subtract the area of the
door-frame from the area of the wall.
Area which needs to be painted = Area of the wall – Area of the door-frame
= 100 – 6
= 94
Therefore, we found out that the area
which needs to be painted is 94m².
Now, the next step is to find the total
labour charges required for painting the
wall.
Here, we have the labour charges
for painting 1m² is Rs. 2.50.
Therefore, let us find the labour charges
to paint 94m². Let us consider the total
labour charges for painting the wall as 'x'.
1 = 2.50
94 = x
x= 94x2.50
= 235
Hence, the total labour charges for
painting the wall is Rs. 235.
Note: Here, in this question if you
notice the dimensions of the wall, it has
10m x 10m which states that both the
measurements are the same. So, the wall is in square shape, although either
formula,
area of rectangle = 1 × b or area
of square = s2can be used to find its
value.
Hope it's help you ❤️❣️
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Answer:
the vascular tissue in plants which conducts water and dissolved nutrients upwards from the root and also helps to form the woody element in the stem.