We have two soap of equal weights and a 3/4 pound weight. The balance was equal when we placed one soap on one side and 3/4 pound weight and 3/4th soap on another side.
What is the weight of soap?
say soap weight = x then , x = 3/4 pounds + 3x/4 x = (3pounds+3x)/4 4x - 3x = 3pounds x = 3pounds
**
A sphere of radius 3 m is melted to form a cylinder and a cone of equal weights and heights. Find the ratio of radii of cylinder and cone.
The numbers 1, 2 and 3 have been placed at the corners of a triangle. Arrange the numbers 4, 5, 6, 7, 8, and 9 on the sides, so that the numbers along each side (including the corners) add up to 17.
A merchant has a 40 kg weight which he used in his shop. Once, it fell from his hands and was broken into 4 pieces. But surprisingly, now he can weigh any weight between 1 kg to 40 kg with the combination of these 4 pieces.
So question is, what are weights of those 4 pieces..?
You have 7 tennis balls that are all identical but one of them is slightly lighter than the others.
Using a balance scale and only two separate weightings, how can you find the light tennis ball?
