Question

Please Answer this Question (◍•ᴗ•◍)❤​

Answer 1

Answer:

Milk Cost = Rs 156.75 ,  cost of metal sheet  160.77  Rs

Step-by-step explanation:

R = 20 cm

r = 8 cm

h = 16 cm

Volume = (1/3) π h (R² + r² + R.r)

=> V = (1/3) (3.14) (16) ( 20² + 8² + 20*8)

=> V = (50.24/3) (400 + 64 + 160)

=> V = (50.24/3) (624)

=> V = 50.24 * 208

=> V = 10449.92 cm³

1000 cm³ = 1 litre

Milk =  10.4499 litre

rupees 15 per litre

Milk Cost = 15 * 10.4499  = Rs 156.75

Surface Area =  π(R + r)( √(R-r)² + h²)   + πR² + πr²

= (3.14) (20 + 8) (√(20-8)² + 16²)  + (3.14)20²  + (3.14)8²

=(3.14) (28) (20) + (3.14)( 400 + 64)

= (3.14)(560 + 464)

= (3.14)(1024)

= 3215.36 cm²

metal sheet required to make the container at the rate of rupees 5 per 100 cm ²

= 5 * 3215.36  /100

= 160.77  Rs