Silent Letter | Silent Letter in English | Silent Letter Pronunciation by NIKHIL SIR

The capital letter S in the English alphabet has :

Silent Spring' is

5 letters can be posted into 3 letter boxes in:

Day time sound level in silent zone is

How many 3 letter code combinations are possible using the first 10 letters of English alphbets if: i. no letter can be repeated, ii. letters can be repeated.

Serial numbers for an item produced in a factory are to be made using two letters followed by four digits (0 to 9). If the letters are to be taken from twenty six letters of English alphabet without repetition and the digits are also not repeated in a serial number, how many serial numbers are possible?

How many 4-letter code can be formed using the first 10 letters of the English alphabet, if no letter can be repeated?

How many codes containing 3 letters can be formed with the 9 letters of English alphabet if repetition is not allowed?

Seven different letters are given. Then the number of ways in which , words of 5 letters can be formed such that atleast one of the letters is repeated is

How many 4 letter code can be formed using the first 10 letters of the english alphabet if no letter can be repeated.