arithmetic - there are 4 questions in a question paper if the questions have 5 43 and 2 solutions respectively find the total number of solutions - skillgun

Here question 1 has 5 solutions, question 2 has 4 solutions and question 3 has 3 solutions, question 4 has 2 solutions.
=> By the multiplication (counting) rule,
Total number of solutions= 5*4*3*2
= 120