Question

brainliest answer
The number of planks of dimensions ( 4m x 50 cm x 20 cm ) that can be stored
in a pit which is 16 m long, 12m wide and 2 m deep is:
a) 1920
(b) 960
(c) 480
(d) 240​

Answer 1

Answer:

Length of the plank=4m=400cm

Breadth=50cm

Height=20cm

Volume of the plank=L*B*H

=400*50*20

=400000cm^3

Length of the pit=16m=1600cm

Breadth=12m=1200cm

Height=4m=400cm

Volume of the pit= L*B*H

=1600*1200*400

=768000000cm^3

Number of planks that can be fitted=

768000000/400000

=1920 planks is the answer

Answer 2

Answer:

The number of planks that can be stored in the pit is option (b) 960

Step-by-step explanation:

Volume of cuboid is=lbh

Let the number of planks that can be stored in a pit be 'x'

Volume of each plank is =lbh

=4*50*20*10^-4=4000*10^-4

=4*10^-1m³

Volume of pit=16*12*4=768m³

We know that,

x*Volume of each plank =Volume of pit

x*4*10^-1=768

x=768/4*10^-1

x=192*10=1920

Hope it helps you..