Using digits 4, 0, 9, 8 form the largest and smallest number of four digits (repetition is not allowed). Sum of these two numbers is :
Given
Digits = 4, 0, 9, 8
Formula / Concept used
· Largest number: arrange digits in descending order
· Smallest 4-digit number: smallest non-zero digit first, then remaining digits in ascending order
Solution
Largest number formed = 9840
Smallest 4-digit number formed = 4089
Sum = 9840 + 4089 = 13929
The correct option is (b)
English
200 Questions
200 Marks
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