Gaurav and Jagdish each have a collection of cricket balls. Gaurav said that if Jagdish would give him 4 of his balls they would have an equal number; but, if Gaurav would give Jagdish 4 of his balls, Jagdish would have 3 times as many balls as Gaurav.
How many balls does Jagdish have?
Bindask
Gaurav : 12
Jagdish : 20