 Hi and welcome to the session. Let us discuss the following question. Question says find the values of the letters in the following and give reasons for the steps involved. Let us now move on to the solution. Now first of all we will rewrite the given puzzle that is AB multiplied by 5 gives CAB. Now clearly you can see we need to find three letters. They are A, B and C. Now clearly you can see one space of 5 multiplied by B is B. Now this is possible only if value of B is equal to 0 or 5. We know that 5 multiplied by 0 is 0 and 5 multiplied by 5 is 25. Now once place of 5 multiplied by 0 is 0 only and once place of 5 multiplied by 5 is 5 itself. Now we can write since once place of 5 multiplied by B is B it must be that B is equal to 0 or B is equal to 5. Now note that unit space of 5 multiplied by A is A itself. So we can write once place of 5 multiplied by A is A. Again this is possible only if value of A is equal to 0 or value of A is equal to 5. Now we know that first digit of a number cannot be 0. Now A is the first digit of the number AB. So A cannot be 0. So correct value of A is 5. Now we can write so A is equal to 5. This is because first digit of a number AB cannot be 0. Now we get the value of A as 5 and possible values of B are 0 and 5. Now let us consider the first possibility that is A is equal to 5 and B is equal to 0. For A is equal to 5 and B equal to 0 we get 50 multiplied by 5 as 250. Here we have solved the given puzzle. Clearly you can see value of B is 0 and value of A is 5. Moreover value of C is 2. Note that another possibility of B equal to 5 fails as for A equal to 5 and B equal to 5 we get 55 multiplied by 5 as 275. Now here these two values of A are not equal to each other. So B is equal to 5 is not the correct value of B. So here we have solved the given puzzle. Required value of A is 5, value of B is 0 and value of C is 2. So this is our required answer. This completes the session. Hope you understood the solution. Take care and bye for now.