Dholu courier service is one of the best courier service of the country. They have postmen that go to the different parts of the country. One postmen can take 4 letters at a time. Today all the managers of their office at different parts of country went on strike. So to distribute the letters among the postmen you are appointed. Now find out the number of postmen required.
Math Skills
Division of a 2 Digit Number by 1 Digit Number by Repeated Subtraction.