Question
A solid cone is placed inside a solid hemisphere, both
having the same radius and height. If the volume of the cone is 150 cm³, find the total volume of the cone and the hemisphere combined.Solution
Volume of the cone = (1/3)πr²h, Volume of the hemisphere = (2/3)πr³, Given: Volume of the cone = 150 cm³. Volume of the hemisphere = 2 × Volume of the cone Volume of the hemisphere = 2 × 150 = 300 cm³. Total volume = Volume of the cone + Volume of the hemisphere Total volume = 150 + 300 = 450 cm³. Correct option: D) 450 cm³
(13)2 + 6 × (19)2 – 312 × 4 = ?
?% of 18% of 2600 = 234
√0.49 + √6.25 + √1.44 + √1.21 =? % of 125
139 + 323 – √169 + ? = 450
- What will be come in place of (?) in the given expressions.
√324 + (18 × 5) – 72 ÷ 8 = ? Simplify the following expression.
(3-3 × 3 + 3 ÷ 3 + 3 × 5) × 2 of 5 + (2 + 2 ÷ 2 + 2 × 2 - 2)
115% of 40 + 3 × 4 = ? × 11 – 8
- What will come in place of the question mark (?) in the following questions?
(82 + 62 ) × 1.25 + 20% of 145 = ? – 40% of 65Â
? × 5.5 = √1225 + 40% of 30% of 37.5% of 5000 – 63