Math, asked by bhardwajpratyaksha, 10 months ago

Please give step-by-step process , or else ....

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Answers

Answered by Vedang2004
2

Step-by-step explanation:

external dimensions= 27*19*11

width=1.5cm

thus the internal

length=27-1.5*2

=24cm

breadth=19-1.5*2

=16cm

height=11-1.5*2

=8cm

thus volume= lbh

=24*16*8

=3072cm^3

external volume=LBH

=27*19*11

=5643cm^3

i) volume of wood=ext vol- int vol

=5643-3072

=2571 cm^3

ii) cost = cost per cm^3*vol of wood

= 1.20*2571

=₹ 3085.20

iii) side of cube= 4cm

volume= a^3

= 4^3

=64 cm^3

no.of cubes= int.vol of box÷vol. of cube

=3072/64

=48

Answered by Anonymous
1

Step-by-step explanation:

Length of the open box =  27 cm

Breadth of the open box = 19 cm

Height of the open box = 11 cm

External volume of the open box = 27 * 19 * 11 = 5643 cm^3.

Thickness is 1.5 cm

Internal length of open box = 27 - (1.5 * 1.5) cm = 24 cm

Internal breadth of a open box = 19 -  (1.5 x 1.5) cm = 16

Internal height of open box = 11 - 3 = 8 cm

Internal volume of open box = 24 * 16 * 8 = 3072 cm^3  

(i)

Volume of wood in the box = 5643 - 3072

=> 2571 cm^3

(ii)

cost of wood = 2571 * 1.20 = 3085.2

(iii)

Number of cubes 4 cm.

= 24/4 * 16/4 * 8/4

= 6 * 4 * 2

= 48 cubes.

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