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
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
Similar questions