An article is of size 9 cm × 6 cm × 3 cm. The number of such articles that can be packed in a box measuring 63 cm × 42 cm × 21 cm is:
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 343.
Let the number articles that can be packed in the box be N.
According to the given question,
63 × 42 × 21 = N × 9 × 6 × 3
⇒ N = 7 × 7 × 7
⇒ N = 343