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How many words of 6 letters from the wor...

How many words of 6 letters from the word 'SUNDAY' can be formed if
(i) there is no restriction?
(ii) all words start with 'S'?
(iii) all words start with 'S' and ends with 'Y'?
(iv) all vowels come together?
(v) all consonants come together?

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The correct Answer is:
(i) 720 (ii) 120 (iii) 24 (iv) 240 (v) 144
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NAGEEN PRAKASHAN-PERMUTATION AND COMBINATION -Exercise C
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  7. How many words can be formed with the letters of the words 'TRIANGLE',...

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  8. How many words can be formed with the letters of the words 'SQUARE', w...

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  9. How many words can be formed by the letters of the word 'TUESDAY' whic...

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  10. How many words can be formed with the letters of the word 'DELHI' if E...

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  14. How many even numbers of 4 digits can be formed with the digits 2,3,5,...

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  17. How many numbers of 5 digits can be formed with the digits 1,3,0,2,4,8...

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  18. Find the sum of all those 4 digits numbers which can be formed with th...

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  19. Find the sum of all those numbers which can be formed with the digits ...

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  20. How many numbers between 6000 and 7000 a divisible by 5 which can be f...

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