The students of a school are made to stand in rows. If the number of students in each row is increased by ^@4^@, there would be ^@2 ^@ rows less. If the number of students in each row is reduced by ^@4^@, there would be ^@3^@ rows more. Find the number of students in the school.
There is a right cylindrical vessel of radius 3 cm and height 32 cm which is full of ice-cream. This ice-cream needs to be filled in cones of height 10 cm and radius 3 cm having a hemispherical shape on the top. How many such cones can be filled with ice-cream?
A survey of ^@ 800 ^@ girls of a school was conducted and it was found that ^@144^@ girls like coffee while ^@656^@ dislike it. Out of these girls, one girl is selected at random.
What is the probability that the selected girl likes coffee?