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Formation of Algebraic Expressions

How many diff...

Question

How many different 5 letter words standing with a vowel can be formed from the letters of EQUATION?

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Solution

Dear Student,

The first letter of the word must be a vowel. There are 5 choices.

This leaves 7 choices for the second letter, 6 for the third, 5 for the fourth and 4 for the fifth.

In total, there are 5 x 7 x 6 x 5 x 1=1050 different words.

Regards,

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