50020

Question

This is a view of a solid made by stacking 21 identical cubes.



How many cubes are completely hidden in this view?

Worked Solution

One strategy:

Cubes that can be seen (by row)

= 5 + 5 + 5
= 15


∴\therefore Number hidden = 21 −- 15 = {{{correctAnswer}}}.

Variant 0

DifficultyLevel

445

Question

This is a view of a solid made by stacking 21 identical cubes.



How many cubes are completely hidden in this view?

Worked Solution

One strategy:

Cubes that can be seen (by row)

= 5 + 5 + 5
= 15


∴\therefore Number hidden = 21 −- 15 = 6.

Question Type

Multiple Choice (One Answer)

Variables

Variable nameVariable value
correctAnswer
6

Answers

Is Correct?Answer
x

15

x

14

✓

6

x

5