Permutation: n Different Things Taken All at a Time When All Are Not Different
How many diff...
Question
How many different nine-digit numbers can be formed from the number 223355888 by rearranging its digits so that the odd digits occupy even positions ?
A
16
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
36
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
60
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
180
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is C 60 X - X - X - X - X The four digits 3, 3, 5, 5 can be arranged at (-) places in 4!2!2!=6 ways. The five digits 2, 2, 8, 8, 8 can be arranged at (X) place in 5!2!3!=10 ways. Total numbers of arrangement is 6×10=60.