There are four numbers such that average of first two numbers is 1 more than the first number, average of first three numbers is 2 more than average o...
Question
There are four numbers such that average of first two numbers is 1 more than the first number, average of first three numbers is 2 more than average of first two numbers, and average of first four numbers is 3 more than average of first three numbers. Then, the difference between the largest and the smallest numbers, is