Question
A solid right circular cone is cut into two parts at the
middle of its heightby a plane parallel to its base. The ratio of the volume of smaller cone to the whole cone isSolution
A cone is cut at half its height by a plane parallel to its base, forming a smaller cone on top. Ratio of Dimensions Height of smaller cone = h/2 Radius of smaller cone = r/2 (Since the cones are similar, their dimensions are reduced proportionally). Volume Ratio Volume of a cone formula:
- Which of the following numbers is not a perfect square?
A lending library has a fixed charge for the first 7 days and an additional charge for each day thereafter. Sahil paid Rs . 215 for a book kept for 15 ...
- A number exceeds 40 times its reciprocal by 7/8. Determine the number.
Find the greatest 4‑digit number which is exactly divisible by 12, 15 and 20.
In a two digit positive number, the digit in the unit’s place is equal to the square of the digit in ten’s place, and the difference between...
- Find the median of the following observations:
120, 125, 115, 130, 140, 135, 145 - Find the smallest number that is divisible by 14, 28, and 42.
Determine the highest possible value of (x + y) if the number '3x725y4' is divisible by 12.
Find the least number to be added to 1500 to make it a perfect square.
If y = 5, then what is the value of 10y