
In a Higher Secondary School, the following types of groups are available in standard
Science Group:
Physics, Chemistry, Biology and Mathematics
Physics, Chemistry, Mathematics and Computer Science
Physics, Chemistry, Biology and Home Science
Arts Group:
Accountancy, Commerce, Economics and Business Maths
Accountancy, Commerce, Economics and Computer Science
History, Geography, Economics and Commerce
Vocational Group:
Nursing - Biology, Theory, Practical I and Practical
Textiles and Dress Designing - Home Science, Theory, Practical and Practical .
In how many possible ways, can a student choose the group?


Important Questions on Information Processing


A safety locker in a jewel shop requires a digit unique code. The code has the digits from to . How many unique codes are possible?


The given spinner is spun twice and the two numbers got are used to form a digit number. How many different digits numbers without repetition of digits are possible?

Colour the countries in the following maps with as few colours as possible but make sure that no two adjacent countries are of the same colour.


