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

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

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.

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

5 1551
Q:

Count the number of cubes in the given figure.

 A) 45 B) 46 C) 48 D) 49

Explanation:

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

$\fn_cm \therefore$ Total number of cubes = (21 x 2) + (4 x 1) = 42 + 4 = 46

2 458
Q:

Count the number of cubes in the given figure.

 A) 80 B) 87 C) 89 D) 90

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.

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

4 347
Q:

Count the number of cubes in the given figure.

 A) 64 B) 66 C) 68 D) 70

Explanation:

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

$\fn_cm \therefore$ Total number cubes = (34 x 2) = 68

7 328
Q:

Count the number of cubes in the given figure.

 A) 8 B) 9 C) 12 D) 15