Which number will fit in '?' place in the following series?

 

12, 23, 45, 89, ?

 

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

If the Arithmetic mean of 7, 5, 13, x and 9 is 10, then the value of x is

What least number must be subtracted from 3401, so that the sum is completely divisible by 11?

The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?

The 2nd and 8th term of an arithmetic progression are 17 and -1 respectively. What is the 14th term?

Select the correct option:

Convert decimal 101 to binary .

The average of 29 consecutive even integers is 60. The highest of these integers is

Product of digits of a 2-digit number is 27. If we add 54 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.