Question
A large cube with side length 6 cm is painted on all its
faces and then cut into smaller cubes, each with side length 2 cm. How many smaller cubes have only one face painted?Solution
The large cube has a side length of 6 cm, and it is cut into smaller cubes of 2 cm side length. This means the large cube will be cut into 6/2=3cubes along each side, resulting in a total of 3Ă—3Ă—3=27smaller cubes. To find how many cubes have only one face painted, we focus on the cubes at the middle of each face of the large cube. These cubes have one face exposed and painted. Each face of the large cube has 3 x 3 = 9 cubes, and the middle one on each face will have only one face painted. There are 6 faces, so the number of cubes with only one face painted is 6Ă—1=6cubes per face. Therefore, the correct answer is (b), 36.
Which of the following shelf does the box with Tie kept?
Who among the following lives immediate above the vacant flat?
How many persons live between Q and P?
Who visits just before the one who has White?
If Shubham is related to ASUS - Brown in the same way as Arjun is related to Samsung - Purple. Following the same pattern, find out Jatin is related to ...
- Seven boxes, F, G, H, I, J, K and L, are kept one above other, such that bottommost box is numbered as 1 and topmost box is numbered as 7. F is a prime num...
A likes which of the following game?Â
How many such pair(s) of letters are in the word “CONVERSATION” which has as many letters between them (both forward and backward) as in the English...
Who among the following belongs to Uttar pradesh?
Who attends seminar in morning on Tuesday?