Math, asked by aprajita2011, 11 months ago

the dimension of a cubical in 30cm×40 cm × 50 cm find the cost of 10 required for making 20 such tins if the cost of tin sheet is rupees 20 per square metre ?​

Answers

Answered by Anonymous
1

Answer:

Total cost = 376

Step-by-step explanation:

Dimensions = 30 cm X 40 cm X 50 cm

= 0.3 m X 0.4 m X 0.5 m

Total surface area of 1 tin = 2 (LB + BH + LH)

= [2 X (0.3 X 0.4)] + [2 X (0.3 X 0.5)] + [2 X (0.5 X 0.4)]

= 0.24 + 0.30 + 0.40

= 0.94 m²

Total surface area of 20 tins = 20 X 0.94

= 18.8 m²

Cost of tin = 20 per m²

Total cost of tin = 20 X 18.8

= 376

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