In a two-digit number, its units digit exceeds its tens digit by 2 and that the product of the given number and the sum of its digits is equal to 460. The number is:

If the 5-digit number 535ab is divisible by 3, 7 and 11, then what is the value of (a² - b² + ab)?

The product of 1.7 ´ 10⁴ and 12.5 ´ 10^–6 is expressed in the standard form as k ´ 10ⁿ . The value of (2k + n) is

The largest three-digit number that gives the same remainder 2 when divided by 3, 5 and 9 is ________.

The number 2918245 is divisible by which of the following numbers?

The number 1254216 is divisible by which of the following numbers?

Find the mode for the given distribution (rounded off to two decimal places)

Class                             5-10 10-15 15-20 20-25 25-30 30-35

Interval Frequency       8         7          6         9          11      10

The arithmetic mean of the following data is .

23, 17,20,19,21