Question
The surface area of a sphere is 154 cm². Find its
volume.Solution
Surface area A = 4πr² = 154. Solving for r: r² = 154/(4π) => r = √(154/(4π)). r = 7/2 cm Now, the volume V = (4/3)πr³. = 4/3 * 22/7 * 7/2 * 7/2 * 7/2 = 179.66 V ≈ 179.66 cm³. Correct answer : b) 179.66 cm³
What will come in place of the question mark (?) in the following series?
1528, 1416, 1204, ?, 480, -32
143 Â Â Â Â 119Â Â Â Â 107Â Â Â Â 101Â Â Â Â Â 98Â Â Â Â ?
96 89 ? 90 94 91
...What value should come in the place of (?) in the following number series?
19, 235, 260, 324, 333, ?
What will come in place of the question mark (?) in the following series?
305...
In each of the following number series, one term is missing. Find the missing term.
3, 5, 20, 24, 144, 150, ?
1029, 1030, 1039, 1064, ?, 1194
75, 80, 95, ?, 155, 200
What will come in place of the question mark (?) in the following series?
1515, 184, ?, 455, 967, 624
7 29 61 ? 211 349
...
