1
UPSC Civil Service Prelims Paper II 2023 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language
A rectangular floor measures 4 m in length and 2.2 m in breadth. Tiles of size 140 cm by 60 cm have to be laid such that the tiles do not overlap. A tile can be placed in any orientation so long as its edges are parallel to the edges of the floor. What is the maximum number of tiles that can be accommodated on the floor?
A
6
B
7
C
8
D
9
2
UPSC Civil Service Prelims Paper II 2023 (CSAT)
MCQ (Single Correct Answer)
+2.5
-0.833
Change Language

A cuboid of dimensions 7 cm × 5 cm × 3 cm is painted red, green and blue colour on each pair of opposite faces of dimensions 7 cm × 5 cm, 5 cm × 3 cm, 7 cm × 3 cm respectively. Then the cuboid is cut and separated into various cubes each of side length 1 cm. Which of the following statements is/are correct ?

1. There are exactly 15 small cubes with no paint on any face.

2. There are exactly 6 small cubes with exactly two faces, one painted with blue and the other with green.

Select the correct answer using the code given below:

A
1 only
B
2 only
C
Both 1 and 2
D
Neither 1 nor 2
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