What should come next in the following number series ? 9 7 5 3 1 8 6 4 2 9 7 5 3 8 6 4 2 1) 2 2) 9 3) 5 4) 3 5) None of these

In the following number series how many 9's are there which are immediately preceded by a pair of numbers whose product is more than the product of the pair of numbers immediately following 9 ? 8 7 9 9 6 8 4 5 9 3 8 4 9 2 5 1 9 2 2 6 9 4 3 9 2 5 8 1) 4 2) 3 3) 6 4) 5 5) None of these

What should come next in the following number series ? 9 8 7 6 1 2 3 4 5 9 8 7 1 2 3 4 5 9 8 7 1 2 3 4 9 8 1) 7 2) 1 3) 2 4) 5 5) None of these

1 + (3)/(1!) + (5)/(2!) + (7)/(3!) + (9)/(4!) + ... = ..........

Study the following arrangement carefully and answer the questions given below: 7 6 1 7 9 2 4 1 5 6 4 9 2 3 4 1 2 5 8 5 8 4 8 3 1 2 7 5 2 6 7 2 9 5 3 Which of the following is third to the left of the eighteenth digit from the left end of the above arrangement? 1) 8 2 ) 3 3)4 4)5 5)1

What should come next in the following number series ? 9 1 8 2 7 3 6 4 5 9 1 8 2 7 3 6 5 9 1 8 2 7 3 5 9 1 8 2 7 1) 3 2) 1 3) 5 4) 8 5) None of these

How many 6's are there in the following number sequence which are immediately preceded by 9 but not immediately followed by 4 ? 5 6 4 3 2 9 6 3 1 6 4 9 6 4 2 1 5 9 6 7 2 1 4 7 4 9 6 4 2 1) 1 2) 2 3) 3 4) 4 5) None of these