Possibilities?

Probability Level 2

In how many distinguishable way cans the letters from the word TEST be arranged?

Problem from Math-counts Practice Book

6 5 9 12

Arian Royz by Arian Royz , 16, USA

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3 solutions

X X
Jul 16, 2018

4!/2!(Since there are two Ts)=12

2 Helpful 1 Interesting 1 Brilliant 0 Confused
D K
Jul 29, 2018

Using basic multinominal theorem . Since, T appaears twice Therefore ,Total no of ways = \frac{4!/2!} Thus total number of such combinations are 12. Or simply you can do is 4C2 * 2! =12.

0 Helpful 0 Interesting 0 Brilliant 0 Confused
Arian Royz
Jul 15, 2018

Patience and testing

0 Helpful 0 Interesting 0 Brilliant 0 Confused

Ok. The word given here is "TEST" so we can easily count it. What about this word : "ELEPHANT" . WILL YOU GO ON COUNTING !!!

Ram Mohith - 2 years, 10 months ago

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