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Q:

A solid cube is cut into 27 identical cubes. What is the percentage increase in the total surface area?

A) 150 B) 200
C) 300 D) 250
 
Answer & Explanation Answer: B) 200

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Filed Under: Volume and Surface Area
Exam Prep: Bank Exams

Q:

Identical cubes of largest possible size are cut from a solid cuboid of size 65 cm × 26 cm × 3.9 cm. What is the total surface area (in cm2) of all the small cubes taken together?

A) 30420 B) 15210
C) 20280 D) 16440
 
Answer & Explanation Answer: A) 30420

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Filed Under: Volume and Surface Area
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Q:

A cuboid has dimensions 8 cm x 10 cm x 12 cm. It is cut into small cubes of side 2 cm. What is the percentage increase in the total surface area?

A) 286.2 B) 314.32
C) 250.64 D) 386.5
 
Answer & Explanation Answer: D) 386.5

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Q:

Three cubes of iron whose edges are 6cm, 8cm and 10cm respectively are melted and formed into a single cube. The edge of the new cube formed is

A) 12 cm B) 14 cm
C) 16 cm D) 18 cm
 
Answer & Explanation Answer: A) 12 cm

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Q:

If the sum of squares of two real numbers is 41 and their sum is 9. Then the sum of cubes of these two numbers is

A) 169 B) 209
C) 189 D) 198
 
Answer & Explanation Answer: C) 189

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Filed Under: Problems on Numbers
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Q:

Radius of cross section of a solid right circular cylindrical rod is 3.2 dm. The rod is melted and 44 equal solid cubes of side 8 cm are formed. The length of the rod is (Take Π = 22/7)

A) 56 cm B) 7 cm
C) 5.6 cm D) 0.7 cm
 
Answer & Explanation Answer: B) 7 cm

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Filed Under: Volume and Surface Area
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Q:

Four positions of a cube are shown below. Which color is opposite to white color in the given cubes?

A) Orange B) Blue
C) Red D) Yellow
 
Answer & Explanation Answer: B) Blue

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Filed Under: Cubes and Dice
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Q:

The sum of the cubes of two numbers in the ratio 3 : 4 is 5824. The sum of the numbers is:

A) 21 B) 28
C) 24 D) 14
 
Answer & Explanation Answer: B) 28

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Filed Under: Problems on Numbers
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