Let the numbers be x and 4x. So, according to the question,
x + 4x = 100
=> 5x = 100
=> x = 100/5
=> x = 20
So, the number are,
x = 20
and
4x = 4×20 = 80
So, the two numbers are 20 and 80.
Answer:
576 cuboids
Step-by-step explanation:
Let
x -----> the length side of the cube
n -----> number of cuboids that are needed
we know that
The volume of the cuboid is equal to

The volume of the cube is equal to

Find the number of cuboids that are needed

n*24 must be a perfect cube
so
The minimum value that satisfied n to make n*24 a perfect cube is n=576

Answer:
130/100 = 13/10
Step-by-step explanation:
P(A or B)= 1 + 30/100 = 100+30/100 = 130/100