1.

Find the value of the rectangular well 28 deep Base dimensions are 10 metre and 8 metre and also find the cost of plastering its vertical wall at the rate of 15 metre square​

Answer»

\huge\bold{Correct \ Question!}

V = l × b × h

  • = 10 × 8 × 28
  • = 2240m²

L.S.A = 2h( l + b)

  • = 2(28) (10 + 8)
  • = 56 (18) = 1008m²

  • 1m² = ₹15
  • 1008m² = ?

1008 × 15 = 15,120

Therefore, The cost of plastering its vertical at the rate of 15m² is ₹15,120.



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