Paul makes

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

Correct answer:

n =  20

Step-by-step explanation:

a=5 cm b=2 cm c=5 cm  5 ...  prime number 2 ...  prime number LCM(5,2,5)=25=10  x=LCM(a,b,c)=LCM(5,2,5)=10 cm  n1=x/a=10/5=2 n2=x/b=10/2=5 n3=x/c=10/5=2  n=n1 n2 n3=2 5 2=20



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