Question

Nathan is filling a box with 1-inch cubes. He filled the bottom layer as shown. Nathan wants to completely fill the box. How many cubes will Nathan need in all? A. 18 B. 26 C. 144 D. 180

Answer 1

we are given

number of cubes in bottom is 3*16=18

we can see that

number of layers is 8

now, we can find total number of cubes

total number of cubes = number of layers*number of cubes in bottom

so, we get

total number of cubes = 8*18

total number of cubes is 144

so, option-C..........Answer