Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
3.8k views
in Mathematics by (67.9k points)

The sum of 5 digit number in which only odd digits occur without repetition is

(a) 277775

(b)  555550

(c) 1111100 

(d) 6666600

1 Answer

+1 vote
by (63.3k points)
selected by
 
Best answer

Correct option  (d)  6666600

Explanation:

Sum of n digit numbers

= (Sum of digits) (10n  - 1)/(10 - 1)(n -n - 1)!

=  (1 + 3 + 5 + 7 + 9)(105 - 1)/10 - 1(5 - 1)!

= 25 × 11111 x 24

= 6666600

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...