Saved Bookmarks
| 1. |
50 POINTS. QUESTION. PLEASE ANSWER. Arun makes a cuboid of wood. Off sizes 7cm 4 cm and 3 cm how many such minimum number of cuboids will be need to form a cube? |
Answer» Given that Parikshit MAKES a cuboid of plasticine of sides 5 cm, 2 cm, 5 cm. Now, we have to find l.c.m. of the sides of CUBOIDS to GET the side of CUBE. Then, l.c.m. of 5, 2, 5 = 10.Therefore, each side of the cube will be 10 cm. Now, the volume of the cuboid is = (5*2*5) CUBIC cm = 50 cubic cm.and, the volume of the new cube is = (10*10*10) cubic cm = 1000 cubic cm. Therefore, he need (1000/50) cuboids, i.e., 20 cuboids.
|
|