Question

Prakshit makes a cuboid of plasticine of sides 25cm*10cm*8cm. How many such cuboids will be need to form a cube?

Answer 1

Answer:

hi this is answer

Step-by-step explanation:

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.

Answer 2

Answer:

1. find l.c.m of 25,10 and 8cm
2. l.c.m = 200 cm
3. No. of cuboid = volume of cube/ volume of cuboid
4. =25×10×8/5×5×2×2×2
5. =10
6. since,10 cubes are needed.