A poster of size 10 cm by 8 cm is pasted on a sheet of cardboard such that there is - Maths - Mensuration

Question

A poster of size 10 cm by 8 cm is pasted on a sheet of cardboard
such that there is a margin of width 1 75 cms along each side of
the poster Find (i) the total area of the margin (ii) the cost of
the cardboard used at the rate of the Rs 0 60 per cms^2

Ankush Jain · Accepted Answer

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In order to find the total cost of cardboard firstly find the
area of poster by using the formula for area of rectangle then add
it with the area of margin and finally multiplying the total area
with the given cost per cm2
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A poster of size 10 cm by 8 cm is pasted on a sheet of cardboard such that there is a margin of width 1.75 cms along each side of the poster Find (i) the total area of the margin (ii) the cost of the cardboard used at the rate of the Rs 0.60 per cms^2