Sequence and series

The third term of a GP is 3.What is the product of the first five terms

• 216

• 226

• 243

• 399

Find the sum to n terms of the A.P, whose nth term is 5n+1

• n/2

• n/2(7+4n)

• n/2(7+5n)

• None of these

The nth term of an A.P is 2+n/3, then the sum of the first 97 term is

• 1648

• 1561

• 1649

• 1751

4th term of a G.P Is 8 and 10th term is 27. Then it's 6th term is

• 12

• 14

• 16

• 18

If the numbers n-3, 4n-2, 5n+1 are in A.P, what is the value of n

• 1

• 2

• 3

• 4

The sum of the series 5+9+13+...+49 is:

• 351

• 535

• 324

• 435

The sum of the series 3-1+1/3-1/9+..... Is equal to

• 20/9

• 9/20

• 9/4

• 4/9

The tenth term common to both the A.P, 3, 7, 11..... and 1, 6, 11.... is :

• 171

• 191

• 211

• None of these

Find the sum of all numbers divisible by 6 in between 100 to 400

• 12550

• 11450

• 12450

• 11550

The middle term of arithmetic series 2, 6, 10,.....146

• 70

• 79

• 74

• 83