Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is:

If a 7-digit number 54p3987 is divisible by 11 , then p is equal to:

The least number that must be added to 8961 to make it exactly divisible by 84 is 

Select the number triad that is analogous to the given triads.
 (64, 8, 65), (125, 27, 89)

What is the quotient , when 2645 is divided by 48 ? 

The product of two consecutive odd numbers is 399. Find the lower of them.

The third proportional of two numbers 9 and  24 is

When a number is increased by 28, it becomes 107% of itself. What is the number?