find the cost of painting a tank of dimensions 3m*2m*1.5m at rupees 20 per square metre
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surface area of tank= 2(lb+bh+hl)
=2(3×2+2×1.5+1.5×3)
=2×13.5
sirface area=27m^2
1m^2 =Rs 20
so 27m^2 = 20×27
=Rs 540
=2(3×2+2×1.5+1.5×3)
=2×13.5
sirface area=27m^2
1m^2 =Rs 20
so 27m^2 = 20×27
=Rs 540
afhumahuda:
thanks alot
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