![i) Find the number of four letter word that can be formed from the letters of the word HISTORY. (each letter to be used at most once)(ii) How many of them contain i) Find the number of four letter word that can be formed from the letters of the word HISTORY. (each letter to be used at most once)(ii) How many of them contain](https://haygot.s3.amazonaws.com/questions/1112299_1205663_ans_68bd0f3eca524de283fb15edd53f69e5.jpg)
i) Find the number of four letter word that can be formed from the letters of the word HISTORY. (each letter to be used at most once)(ii) How many of them contain
![A word on Wordle. Exploring letters frequencies to find… | by Behrouz Bakhtiari | Towards Data Science A word on Wordle. Exploring letters frequencies to find… | by Behrouz Bakhtiari | Towards Data Science](https://miro.medium.com/v2/resize:fit:1400/1*MgIrCK8INDfNbNmDd-e6CA.jpeg)
A word on Wordle. Exploring letters frequencies to find… | by Behrouz Bakhtiari | Towards Data Science
![How many different six-letter words can be made by rearranging the letters of the phrase 'I enjoy maths,' excluding spaces? - Quora How many different six-letter words can be made by rearranging the letters of the phrase 'I enjoy maths,' excluding spaces? - Quora](https://qph.cf2.quoracdn.net/main-qimg-18ea299cd90d20e95afd9c49900fa35f.webp)