Question
The sum of the radius and height of a cylinder is 19m.
The total surface area of the cylinder is 1,672 m². What is the volume of the cylinder?Solution
Surface area of the cylinder = 1,672 m². ⇒ 2πr (r + h) = 1,672 m² ⇒ 2 × 22/7 × r × 19 = 1,672 m² ⇒ r = `(1672xx7)/(2xx22xx19)` = 14 ∴ h = (19 - 14)m = 5m ∴Volume of the cylinder = πr² h = `22/7xx14xx14xx5` = 3,080m³
Find the wrong number in the given number series.
16, 24, 36, 54, 81, 120.5
- 2024, 1583, 1193, 822, 498, 209
33Â Â Â Â 34Â Â Â 37Â Â Â 42Â Â Â 48Â Â Â 58
66, 115, 34, 155, 14, 211
360, 322, 286, 248, 220, 190
- Find the wrong number in the given number series.
7, 35, 42, 126, 128, 118 - Find the wrong number in the given number series.
2, 6, 14, 30, 62, 126 Find the wrong number in the given number series.
134, 163, 194, 231, 274, 315
125, 142, 199, 320, 489, 778
Find the wrong number in the given number series.
32, 48, 84, 146, 248, 392