Question

A rectangular solid (cubiod shape) of wax with diameters 66 cm,42 cm,21 cm to prepare cylindrical candles each 4.2 cm in diameter and 2.8 cm of height.Find the number of candles​?

Answer 1

Answer:

Rectangle solid of wax block

dimension=66×42×21

then, the volume of block =66×42×21

=58212cm

3

Now, volume of One candle

=

7

22

×r

2

h

=

7

22

×2.1

2

×2.8

=38.808cm

3

then,

number of candies=

volumeofonecandies

Totalvolumeofcandies

=

38.808

58212

number of candies =1500candies

Hence this is the answer