Question

2. The number of words that can be made by writing down the letters of the word 'CALCULATE' such that each
word starts and ends with a consonant, is​

Answer 1

32 words can be made from calculate which starts with consonant......

Answer 2

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C C=2

A A=2

L

U

T

E

Case1

□□□□□□□□□

C T

or

Case2

Reverse start with T and end with C

Now,

Each case 7!/2!×2!

(2! for two C and 2! for two A)

There will two possibility case 1 and case2

Therefore = 2×7!/2!×2!

=7×6×5×4×3=42×60=2520

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