Question
A solid cube of side 8 cm is dropped into a rectangular
container of length 16 cm, breadth 8 cm and height 15 cm which is partly filled with water. If the cube is completely submerged, then the rise of water level (in cm) is:Solution
The volume of cube = The volume of the rectangular container with a length of 16 cm, breadth of 8 cm, and height of the water level rise Let, the height of the water level will rise = x cm So, 83 = 16 × 8 × x ⇒ 512 = 128 × x ⇒ x = 512/128 = 4 ∴ The rise of water level (in cm) is 4 cm
156, 172, 196, ?, 268, 316
- What will come in place of the question mark (?) in the following series?
1, 2, 5, 16, 65, ? What value should come in the place of (?) in the following number series?
15, 16, 24, 51, 115, ?
Find the missing number in the given number series.
6, 15, 35, 66, 108, ?8      27       64      125     ?       343Â
...- What will come in place of (?) in the given number series.
5, 10, 8, 16, 11, ?, 17 What will come in place of the question mark (?) in the following series?
520, 519, 511, ?, 420, 295
7, 9, 21, ?, 107, 197
100 180 294 448 648 ?
312, 302, 282, ?, 212, 162