Question

Please solve this question❓

Answer 1

Length of cuboidal tin 30 cm = 0.3 m
Breadth = 40 cm = 0.4 m
Height = 50 cm = 0.5 m

Total Surface area = 2(LB*BH*HL)
= 2(0.3*0.4 + 0.4*0.5 + 0.5*0.3)
= 2(0.12 + 0.2 + 0.15)
= 2*0.47
= 0.94 sq m

Total surface area of one tin = 0.94 sq m

Surface area of 20 such tins = 20*0.94
= 18.8 sq m

Cost of making tin sheet = Rs. 30 per sq m

Total cost of making 20 tin sheet = 18.8*30
= Rs. 564

Answer 2

Here is your answer mate..

Hope it helps..