Question

A silver paper cover a packet of 10 chocolate coins of radius 2cm and thickness 7mm.

Answer 1

complete the question

Answer 2

Answer:

Step-by-step explanation:

Question 14: How many coins 1.75cm in diameter and 2mm thick must be melted to form a cuboid 11cm*10cm*7cm?

 

Solution:

So its volume = 11*10*10 cm3

     Given diameter =1.75 cm

Radius = 0.875 cm

Volume of the cylinder = ∏r2h

= ∏0.87520.2

V1=v2 *n

By calculating the above problem we get,

N=1600

Number of coins are 1600