How many numbers are there between 10 and 200 which are exactly divisible by 7.

The first term of an A.P. is 6 and its common difference is 5 . Find the 11^th term ?

How many  numbers between 200 and 1800 are divisible by 4, 5, 6 ?

Total numbers of integers between 100 and 200 which are divisible by both 9 and 6 .

How many multiples of 3 are there between the integers 15 and 105 , both inclusive ?

If the 10^th term of the sequence a, a – b , a – 2b , a – 3b, ….. Is 20 and its 20^th term is 10, then fine its x^th  term.

What is the next  numbers  in the  arithmetic progression 2, 5, 8, ….. ?

The sum 5 + 6 + 7 + 8 + ……….+ 19 = ?

( 1 + 2 + 3 + 4 + …+99 + 100 + 99 + 98 +…..+ 3 + 2 + 1 )  = ?

Find the sum of all odd  numbers between 100 and 200  .