How many two digits perfect squares are there ?

How many perfect square terms are there in the arithemetic sequence 97,73,49,.......?

a) How many two digit numbers are there in all? b) If we choose one number from the two digit numbers, what is the probability that the sum of the digits of that number will be 10 ?

a) Find the least three digit number which leaves a remainder one on division by 9 b) How many three digit numbers are there, which leave a remainder one on division by 9? c) Find the sum of all such numbers.

How many 4 digit numbers are there with no digit repeated?

Is 2637 a perfect square?

Does any perfect square end in 2?

How many three-digit numbers are there, which leave a remainder 3 on division by 7 ?

Given the digits 1,2,3 and 8 How many two digit numbers can be formed using the given digits?

How many two digit even number with distinct digits can be formed from the digits 1,2,3,4,5.

How many 3 digit number can be formed from the digits 1,2,and 3, assuming that the repetition of digits is not allowed.