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# Tips And Tricks And Shortcut To Solve Cube And Cuboid

## Tips and Tricks for Cube and Cuboid:-

- Practice, Practice and.. Practice. Practicing is the only way to improve your solving time. There is no way around it
- Get a quality Rubik’s Cube. The solving time depends on two things: you, and the cube. Let’s focus on the other one: A Hard turning cube that stuck all the time will dramatically increase your solving time.
- Know the algorithms by heart. Practice until you’ll be able to execute the algorithms without thinking about their notation.
- Look ahead. The solving time splits into two parts: the execution time of an algorithm, and the time it takes until you start executing it (looking for the next piece, realizing what algorithm to use and from what angle).
- Use fingertricks. This tip is aiming at shortening your execution time. That will be accomplished by using fingertricks.

**Question 1) Two cubes, each of edge 10 cm, are joined to form single cuboid. What is the surface area of the new cuboid so formed?**

(A) 1200 cm2

(B) 1000 cm2

(C) 1100 cm2

(D) 600 cm2

**Answer:** Option B

**Explanation: **Here length of cuboid = 20 cm.

Breadth and height of cuboid = 10 cm.

∴TSA = 2(L*B + B*H + H*L)

surface area = 2(200 + 100 + 200) = 1000 cm2

**Cube and Cuboid Tips and Tricks and Shortcuts Directions for Cube and Cuboid:**

**The following questions are based on the information given below:**

A cuboid shaped wooden block has 4 cm length, 3 cm breadth and 5 cm height.

Two sides measuring 5 cm x 4 cm are coloured in red.

Two faces measuring 4 cm x 3 cm are coloured in blue.

Two faces measuring 5 cm x 3 cm are coloured in green.

Now the block is divided into small cubes of side 1 cm each.

**Questions 2) How many small cubes will have no faces coloured ?**

(A) None

(B) 2

(C) 4

(D) 6

**Answer:** Option D

**Explanation**: Required number of small cubes = (5 – 2) x (4 – 2) x (3 – 2)

= 3 x 2 x 1

= 6

**Question 3) How many small cubes will have two faces coloured with red and green colours ?**

(A) 12

(B) 8

(C) 16

(D) 20

**Answer :** Option A

**Explanation: **Required number of small cubes = 6 from the top and 6 from the bottom = 12

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