Internal length, breadth and height of a rectangular box are 10 cm, 8 cm and 6 cm, respectively. How many boxes are needed which can be packed in a cube whose volume is 6240 cu. cm.?
A) 12
B) 13
C) 15
D) 17
Correct Answer:
B) 13
Description for Correct answer:
Volume of rectangular box
= \( \Large 10 \times 8 \times 6 = 480 cm^{2}\)
= \( \Large 6240 cm^{3} \)
= \( \Large \frac{Volume \ of \ cubes}{Volume \ of \ rectangular \ box} \)