How many cubes will you remove from 3 - 3 - 3 rubik-s cube of side length 3 cm to make it a 2 - 2 - 2 cube- -3 MARKS-

Concept: 1 Mark Application: 2 Marks Number of cubes in the bigger Rubik’s cube = 3 × 3 × 3 =27 Number of cubes in the smaller cube = 2 × 2 × 2 = 8 So Total ...

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Standard VIII

Mathematics

Cubes Relation with Cube Numbers

How many cube...

Question

How many cubes will you remove from $3 \times 3 \times 3$ rubik's cube of side length 3cm to make it a $2 \times 2 \times 2$ cube. [3 MARKS]

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Solution

Concept: 1 Mark
Application: 2 Marks

Number of cubes in the bigger Rubik’s cube $= 3 \times 3 \times 3 = 27$

Number of cubes in the smaller cube $= 2 \times 2 \times 2 = 8$

So Total number of cubes to be removed $= 27 - 8 = 19$ .

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How many cubes will you remove from 3×3×3 rubik's cube of side length 3cm to make it a 2×2×2 cube. [3 MARKS]

Concept: 1 Mark Application: 2 Marks Number of cubes in the bigger Rubik’s cube =3×3×3=27 Number of cubes in the smaller cube =2×2×2=8 So Total number of cubes to be removed =27−8=19.

How many cubes will you remove from $3 \times 3 \times 3$ rubik's cube of side length 3cm to make it a $2 \times 2 \times 2$ cube. [3 MARKS]

Concept: 1 Mark
Application: 2 Marks

Number of cubes in the bigger Rubik’s cube $= 3 \times 3 \times 3 = 27$

Number of cubes in the smaller cube $= 2 \times 2 \times 2 = 8$

So Total number of cubes to be removed $= 27 - 8 = 19$ .