There are four cuboidal boxes with dimensions (in cm) as given below: Length Breadth Height (i) 20 25 18 (ii) 23 20 20 (iii) 20 22 21 (iv) 24 20 19 Using which boxes can 18440 wooden centimetre cubes be packed?

Correct Answer is : (ii) & (iii)

CTET Class I to V 2015 Sep Paper

Question : 58 of 150

Marks: +1, -0

There are four cuboidal boxes with dimensions (in cm) as given below:

Using which boxes can 18440 wooden centimetre cubes be packed?

Solution:

\;\text " Volume of box "\;( {i})=20 × 25 × 18=9000 {cm}^{3}

\;\text " Volume of box "\;( {ii})=23 × 20 × 20=9200 {cm}^{3}

\;\text " Volume of box "\;( {iii})=20 × 22 × 21=9240 {cm}^{3}

\;\text " Volume of box "\;( {iv})=24 × 20 × 19=9120 {cm}^{3}

Hence, by box (ii) and (iii), 18440 wooden cm cubes can be packed.

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