Question

Q6.Guess the number with the help of the given clues.

 It is less than half of 100.

 It is more than 3 tens and less than 4 tens.

 The tens digit is 2 less than the ones digit.

 Together the digits have a sum of 8.

The number is _________ .​

Answer 1

Since the hundreds digit is eight less than the tens digit, the tens digit has to be 9. This is because 9 is the only positive integer less than 10 that is greater than 8, and thus the only one that will give a positive integer result ...