Math, asked by nonu2668, 1 year ago

If the letters of the word attempt are written down at random, fi nd the probability that all the ts are together.If the letters of the word attempt are written down at random, fi nd the probability that all the ts are together.

Answers

Answered by mkrishnan
14

there are 3 t and 4 others

total arrangement = 7×6×5×4×3×2×1/(3×2×1)

=7×6×5×4

=840

suppose all t are together means just we take single t

so now arrangement =5×4×3×2×1=120

probability = 120/840

=1/7

Answered by amitnrw
2

1/7 is the Probability  that all the T's are together

Step-by-step explanation:

ATTEMPT

has 7 Letters

A is repeated 3 Times

Number of words can be formed = 7!/3!

= 840

if all T's comes together

then TTT can be taken as 1   , A , E , M P  4 letters

Hence total 5 Letters

Number of Words can be formed = 5! = 120

Probability  that all the T's are together = 120/840

= 1/7

1/7 is the Probability  that all the T's are together

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