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
150 Questions
150 Marks
150 Mins English English150 Questions150 Marks150 Mins English English150 Questions150 Marks150 Mins EnglishFind the Highest Common Factor (HCF) of 372, 732 and 2196.
What is the year before 2001 whose calendar is the same as 2001?
Find the fraction of 0.538888...
Let A and B be two sets such that n(A – B) = 20 + x, n(B – A) = 3x and n(A∩B) = x + 1. If n(A) = n(B), then the value of (2x – 5) is:
Let p be the greatest number of 4-digits which when divided by 21, 22, 24 and 28, the remainder in each case is 8. What is the sum of the digits of p?
Suggested Test Series
Suggested Test Series
