Question
Calculate the difference between the area of a wall
having dimension 22 cm X 23 cm and the area of a spherical bowl having diameter 14cm.Solution
Area of the wall = 22 X 23 = 506 cm2Area of the spherical bowl = 4 X π X r2Here, radius of the spherical bowl = Diameter/2Radius of the spherical bowl = (14/2) = 7 cmArea of the spherical bowl = 4 X (22/7) X 7 X 7 = 616 cm2Required difference = 616 - 506 = 110 cm2
Find the median of 2, 8, 6, 6, 7, 9, 5, 12 and 13.
87.5% of the voters in State 'P'Â is equivalent to 10/11 of the voters in State 'Q', and 10/11 of the voters in State 'Q' is equal to 93.75% of the vot...
The mean of 12 numbers is 15. When two additional numbers, x and y , are included, the average increases by 1. Given that the difference between x and y...
- Determine the remainder when
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.
How many numbers lie between 2000 and 3000 divisible by 5 can be made with the digits 2, 3, 4, 5, 6, 7 and 8 without repeating any digit?
If two numbers add up to 12 and the sum of their cubes is 1728, then what is the product of the two numbers?
If p and q are real numbers such that p2 + (p - 2q - 1)2 = - 4q(p + q), then the value p - 2q is
If the 4-digit number y29z is exactly divisible by 9, what is the least value of (y + z)?
Find the remainder when the number (256n + 105) is divided by 16.
Relevant for Exams:
