If the digit 1 is placed after a 2-digit number

Question:

 If the digit 1 is placed after a 2-digit number whose tens is t and one’s digit is u, the new number is ______.

Solution:

tu1

Explanation:

Assume that, the number is initially 10t+u or tu, but after adding 1 to the unit place, tu gets shifted to the one unit higher. It means that 100t+10u+1 or tu1.

State whether the statements given in questions 34 to 44 are true (T) or false (F):

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