In a canteen five times as many employees order the curry as order the pasta.
15 more people have the burger than the pasta and three less people have fish pie than burger.
18 people choose the fish pie.
How many have each of the other three dishes?
21 People chooses burger.
6 People chooses the pasta
and 30 people chooses the Curry.
If seven people meet each other and each shakes hands only once with each of the others, how many handshakes will there have been?
From a group of office workers three times as many play football as play rugby. Four more people play golf than rugby and three less people play tennis than golf. Four people play tennis, how many play each of the other sports?
Three spheres are tangent to a plane at the vertices of a triangle and are tangent to each other. Find the radii of the spheres if the sides of the triangle are 6, 8, and 10.