man donates 10 aluminum buckets to an orphanage. A bucket made of alum

1.	man donates 10 aluminum buckets to an orphanage. A bucket made of aluminum isof height 20 cm and has its upper and lowest ends of radius 36 cm and 21 cmrespectively. Find the cost of preparing 10 buckets if the cost of aluminum sheet is42 per 100 cm2. Write your comments on the act of the man.
Answer» Surface area of bucket = π(r1 + r2)l + πr12 l = √[h2 + (r2 - r1)2] = √625 = 25 cm ∴ Surface area of 1 bucket = 22/7 × 1866 cm2 Surface area of 10 buckets = 22/7 × 18660 cm2 Cost of aluminium sheet = Rs. 24631.20 Like my answer if you find it useful!

man donates 10 aluminum buckets to an orphanage. A bucket made of aluminum isof height 20 cm and has its upper and lowest ends of radius 36 cm and 21 cmrespectively. Find the cost of preparing 10 buckets if the cost of aluminum sheet is42 per 100 cm2. Write your comments on the act of the man.

Answer»

Surface area of bucket = π(r1 + r2)l + πr12

l = √[h2 + (r2 - r1)2]

= √625 = 25 cm

∴ Surface area of 1 bucket = 22/7 × 1866 cm2

Surface area of 10 buckets = 22/7 × 18660 cm2

Cost of aluminium sheet = Rs. 24631.20

Like my answer if you find it useful!