The sum of the digits of a 2digit number is 17. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
10 Consecutive numbers are given. If the average of the two numbers given in the middle is 13.5, then what is the sum of the first 6 numbers?
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1.1 + 12.12 + 123.123 = ?
Which of the following is in ascending order?
Find the least number to be added to 1739 so that it is exactly divisible by 11.
Which instrument is used for viewing the sun?
Which of the following is the least of all?
If the sum of digits is 9 and the difference between the digit in the ten's place and unit's place is 1, then the two-digit number is?
Which of the following numbers is composite?