in how many ways can ‘mathematics’ be arranged so ‘mat’ is not together?
geetesh kumar , 6 Years ago
Grade 11
Magical Mathematics[Interesting Approach]> in how many ways can ‘mathematics’ be arr...
1 Answers
Arun
Last Activity: 6 Years ago
Dear Geetesh
For the answer we can use bijection method i.e.
Totak words - words in which mat is together.
Now
Total words = 11!/2!* 2!* 2!
Words in which mat is together = 7! /2!2!3!
Now you can solve
Regards
Arun (askIITians forum expert)
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