Question
A cone and a cylinder have the same radius and height.
If the volume of the cone is 100 cm³, what is the volume of the cylinder?Solution
Volume of a cone = (1/3)πr²h, Volume of a cylinder = πr²h. Since the radius and height are the same for both, the volume of the cylinder is three times the volume of the cone. Volume of the cylinder = 3 × 100 = 300 cm³. Correct option: B) 300 cm³.
Find the unit digit of the expression: 1! + 2! + 3! + 4! + 5! + ........ + 999!.
Which of the following is a prime number?
When the sum of the squares of two positive integers is given as 1,600, and their product is given as 768. Determine the value of the smaller integer.
The raw material cost of an article is 1/3Â of its manufacture cost. If the cost of manufacturing is decreased in the ratio of 4 : 3 and the cost of it...
A three-digit number is such that the sum of its digits is 12 and when its digits are reversed, the new number is 198 more than the original number. Fin...
- The smallest positive number 'P' which when divided by 21, 28, and 42 leaves 4 as the remainder in each case. Find the value of ('5P' - 10).
Divide 45 into 4 parts such that if the first is increased by 2, the second is decrease by 2, the third is multiplied by 2 and the fourth divided by 2, ...
The product of two co-prime numbers is 945 then find their LCM.
If the 5-digit number 535ab is divisible by 3, 7 and 11, then what is the value of (a²-b² + ab)?
Find the greatest 4-digit number which is exactly divisible by 12, 15 and 18.