Question

Rohit makes a cuboid of plasticine of sides 3cm, 2cm, 5cm.How many such cuboids
will he need to form a cube?​

Answer 1

Answer:

10

Step-by-step explanation:

1. LCM (3,2,5) = 30
2. DIVIDE BY 3 = 10

Answer 2

Question should be

Rohit makes a cuboid of plasticine of sides 5cm, 2cm, 5cm. How many such cuboids will he need to form a cube?

ANSWER

20

Step-by-step explanation:

L.C.M. of 5 and 2 gives the dimension of the cube to be formed.

L.C.M. of 5 and 2 is 10.

Volume of cuboid =5×5×2=50cmcube

Volume of bigger cube = 10cube =1000cm cube

Number of cuboids required to make the bigger cube =

(Volume of a cuboid)= 1000

(Volume of cube ) =. 50

Answer = 20