It costs of 200 to paint …
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Gaurav Seth 3 years, 9 months ago
Let r be the radius of a vessel.
Given: cost to paint the inner curved surface area= ₹2200
Cost to paint per m²= ₹20 & height of vessel (h)= 10 m
Curved surface area= 2πrh
Inner curved surface area=cost to paint the inner curved surface area/cost of paint per m²
2πrh= 2200/20= 110 m²
2× 22/7×r× 10= 110
r=(110×7)/(2×220)= 7/4= 1.75m
i)
Inner curved surface area of the vessel= 110 m²
ii)
Radius of the base radius of the base= 1.75 m
iii) capacity of The vessel= volume of the vessel
=πr²h= 22/7×7/4×7/4×10= 96.25 m³
= 96.25× 1000 L= 96.25 kL
[ 1 m= 100cm, 1 m³= 100 cm³
1000 cm³= 1L, 1000L= 1kL]
capacity of The vessel= 96.25 kL
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