Question
All the sides of a 3-inch solid cube are painted. The
cube is then cut into cubes of equal size to 1 inch each. If a cube is chosen at random, what is the probability that none of its sides are painted?Solution
Side of cube = 3 inches Number of cubes of 1 inch = (3)3 = 27 Number of unpainted cubes = 1 Required probability = Number of unpainted cubes /Number of 1-inch cubes =1/27
Find the wrong number in the given number series.
20, 120, 600, 2400, 7000, 14400
- Find the wrong number in the given number series.
1, 2, 6, 24, 120, 600 3Â Â Â 4Â Â Â 18Â Â Â Â 72Â Â Â Â 360Â Â Â Â Â 2160Â Â Â
8Â Â Â Â Â 5Â Â Â Â Â Â 6.5Â Â Â Â Â 11.75Â Â Â Â Â 26Â Â Â Â Â 65
...Find the wrong number in the given number series.
- 75, - 48, - 29, - 6, 17, 40
72, 360, 370, 1850, 1880, 9300
Find the wrong number in the given number series.
32, 48, 84, 146, 248, 392
Find the wrong number, in the given number series,
432, 429, 420, 408, 392, 372
224, 183, 144,115, 86, 63, 44.
Find the wrong number in the given number series.
41, 51, 63, 80, 101, 126
