48
Q:

Four usual dice are thrown on the ground. The total of numbers on the top faces of these four dice is 13 as the top faces showed 4, 3, 1 and 5 respectively. What is the total of the faces touching the ground?

A) 12 B) 13
C) 15 D) Cannot be determined

Answer:   C) 15

Explanation:

In a usual dice, the sum of the numbers on any two opposite faces is always 7. Thus, 1 is opposite 6, 2 is opposite 5 and 3 is opposite 4.

Consequently, when 4, 3, 1 and 5 are the numbers on the top faces, then 3, 4, 6 and 2 respectively are the numbers on the face touching the ground. The total of these numbers = 3 + 4 + 6 + 2 = 15.

Q:

Count the number of cubes in the given figure.

A) 130 B) 132
C) 138 D) 140
 
Answer & Explanation Answer: D) 140

Explanation:

In the figure, there are

5 columns containing 4 cubes each;

33 columns containing 3 cubes each;

9 columns containing 2 cubes each and 3 columns containing 1 cube each.

 Total Number of cubes = ( 5 x 4) + (33 x 3) + (9 x 2) + (3 x 1) = 20 + 99 + 18 + 3 = 140

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5 1551
Q:

Count the number of cubes in the given figure.

A) 45 B) 46
C) 48 D) 49
 
Answer & Explanation Answer: B) 46

Explanation:

In the figure, there are 21 columns containing 2 cubes each and 4 columns containing 1 cube each. 

 

 Total number of cubes = (21 x 2) + (4 x 1) = 42 + 4 = 46

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2 458
Q:

Count the number of cubes in the given figure.

A) 80 B) 87
C) 89 D) 90
 
Answer & Explanation Answer: C) 89

Explanation:

In the figure, there are 9 columns containing 5 cubes each, 7 columns containing 4 cubes each, 5 columns containing 3 cubes each and 1 column containing 1 cube.

 Total number of cubes = (9 x 5) + (7 x 4) + (5 x 3) + (1 x 1) = 89

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4 347
Q:

Count the number of cubes in the given figure.

A) 64 B) 66
C) 68 D) 70
 
Answer & Explanation Answer: C) 68

Explanation:

In the figure, there are 34 columns containing 2 cubes each.

 Total number cubes = (34 x 2) = 68

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7 328
Q:

Count the number of cubes in the given figure.

A) 8 B) 9
C) 12 D) 15
 
Answer & Explanation Answer: D) 15

Explanation:

Clearly, there are 4 columns containing 1 cube each, 4 columns containing 2 cubs each and 1 column containing 3 cubes.

Hence, there are (4 x 1) + (4 x 2) + (1 x 3) = 4 + 8 + 3 = 15 cubes in the given figure.

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4 379