Answer:
If all three digits need to be the same (I assume that's what aaa means) it's 333
Step-by-step explanation:
For a number XYZ to be divisible by 9, X+Y+Z must be divisible by 9. Here's why:
X*100 + Y * 10 + Z = X + Y + Z + 99*X + 9*Y = X + Y + Z + 9(11X + Y)
So we need to find the smallest a so that a+a+a = 3a is divisible by 9. The smallest would be 0, but 000 is not a real 3-digit number. The next one is 3.
<span>The correct answer is option D. i.e. 1764 cubic inches. The volume of a cuboid is given as: V = length *breadth* height = 14 in*1.5 feet*7 inch =14 in*18 inch*7 inch (Because 1.5 feet = 18 inches) Thus, V = 14 in*18 inch*7 inch = 1764 cubic inches.</span>
X=4 , I believe this is the right answer