Question

please answer this question​

Answer 1

Step-by-step explanation:

2620 Rs

The givens are:

Outer length = 20 cm

• Outer width= 16 cm • Outer height = 8 cm

Therefore, outer volume = Length*Width*Height = 20*16*8 = 2560 cm³.

Since the thickness of the wooden box is 1

cm,

Inner length = 20-2(1) = 18 cm

Inner width= 16-2(1) = 14 cm

Inner height = 8-2(1) = 6 cm

Therefore, the inner volume = 18*14*6 = 1512 cm³.

Therefore, the volume of the wood used Outer volume - Inner Volume = 2560-1512= 1048 cm³.

Since the cost of 1 cm³ = 2.5 Rs, therefore, the total cost = 2.5*1048 = 2620 Rs