Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • By interchanging the digits of the number 214569837 so that odd digits are in even positions, how many 9-digit numbers can be formed?Option: 1

By interchanging the digits of the number 214569837 so that odd digits are in even positions, how many 9-digit numbers can be formed?

Option: 1

2880


Option: 2

1440


Option: 3

2350

 


Option: 4

1580


Answers (1)

best_answer

The given number is 214569837.

The odd digits 1, 5, 9, 3, and 7 can be arranged in 5 even positions in 5! ways.

The even digits 2, 4, 6, and 8 can be arranged in 4 odd positions in 4! Ways.

Therefore, the total number of ways is  5!\times4!=2880  ways. 

Posted by

himanshu.meshram

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: Hardwired to excel? Know BTech electrical engineering cut-offs at NITs
anam-khan

JEE Main 2025 chemistry needs conceptual understanding; 5 tips to score high
anam-khan

JEE Main 2025 exam city intimation slip for session 1 soon; paper pattern, exams from January 22

Latest Question