The sum of digits of a two-digit number is 9. When the digits are reversed, the number decreases by 45. Find the changed number.

What is the median of the following list of numbers

55, 53, 56, 59, 61, 69, and 31 ?

The average of first 20 multiples of 12 is

If + means x, - means /, x means + and / means -; compute the value of the expression

36 - 4 + 7 x 8

In Tennis, hard court is the type of court whose surface is made of

Malini said, "Rohit is my maternal aunt's mother's only son's son". How is Malini related to Rohit?

If R019 is divisible by 11, find the value of the smallest natural number R?

Select the correct set of symbols

44   4   7   5   =   82