The value of the unit digit of a number is $4$ more than the value of the tens digit of the same number. The summation of two times of the original number and $\frac{13}{31}$ of a number which is obtained by interchanging the unit place digit with tens place digit of the original number is $78$.

In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.

Which number will replace the question mark?

In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.

In the question given below, the numbers in the figures are related. Identify their relationships and find the missing numbers in the given figures.

Which number will replace the question mark?

Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.

$\mathrm{l} \mathrm{\_} \mathrm{chtlgc} \mathrm{\_} \mathrm{tlg} \mathrm{\_} \mathrm{ht} \mathrm{\_} \mathrm{gc} \mathrm{\_} \mathrm{tlgch} \mathrm{\_}$

If, in a two-digit number, the digit at unit place is $x$ and the digit at tens place is $4$, then the two-digit number is _____.

Consider a three-digit number with the following properties:

I. If its digits in units place and tens place are interchanged, the number increases by $36$
II. If its digits in units place and hundreds place are interchanged, the number decreases by $198$ .

Now, suppose that the digits in tens place and hundreds place are interchanged. Then, the number

A two digit number is formed in such a way that units place is half of the hundred's place. If we reverse the number , then difference of the numbers formed is square of $6$ find sum of the two numbers.