Numbers Questions

If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?

What is the sum of the first 13 terms of an arithmetic progression if the 5th term is 1 and the 8th term is -17?

What is the largest 4 digit number that is exactly divisible by 93?

If the square of sum of three positive consecutive natural numbers exceeds the sum of their squares by 292, then what is the largest of the three numbers?

Of the 3 numbers whose average is 64, the first number is 1/3 times the sum of other 2. The first number is

Find the missing number?

The sum of three consecutive even integers is 84. Which is the least integer among them?

The 3rd and 6th term of an arithmetic progression are 13 and -5 respectively. What is the 11th term?