Q. 94.0( 8 Votes )

# The cost of paint

Answer :

Given,

Height of tank = 6 × radius of tank

Let radius of tank = r decimeter

So, height of tank = 6r dm

Total surface area of tank = = 2πr(h+r) = 198×2

= 2πr(7r) = 396

= r2 = = r = 3 dm

Height = 6r = 6×3 = 18 dm

So, volume of tank = πr2h = Rate this question :

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