Reciprocals of the terms of the geometric sequence form:

• A.P A
• G.P B
• H.P C
• none D

If a_n-3 = 2n - 5 then a_n =

• 2n-1 A
• 2n+1 B
• 2n+3 C
• none D

The reciprocal of the terms of A.P. form:

• A.P A
• G.P B
• H.P C
• none of these D

A clock strikes once when its hour hand is at one, twice when it is at two, and so on. How many times does the clock strike in ten hours ?

• 55 A
• 78 B
• 66 C
• 46 D

The product of three G.Ms between 1 and 16 is:

• 32 A
• 64 B
• 128 C
• 16 D

Arithmetic series is only possible if:

• |d| = 1 A
• |d| < 1 B
• |d| > 1 C
• none D

• A.P A
• G.P B
• H.P C
• none D

What is the next term in the sequence 10, 7, 4, 1...........?

• 2 A
• -2 B
• -3 C
• none of these D

The series 3 + 33 + 333 + ...... is:

• A.P A
• G.P B
• H.P C
• none of these D

Two A.Ms. between 3 and 9 are:

• 3. 6 A
• 5, 7 B
• 6, 12 C
• 3, 9 D

Sum of all positive integral multiples of 3 less than 100 is:

• 950 A
• 760 B
• 1230 C
• 875 D

G.M between -2i and 8i is:

• 4 or -4 A
• 4i or -4i B
• 2 or -2 C
• none D

Domain of finite sequence is:

• set of natural numbers A
• subset of N B
• R C
• none D

A sequence of numbers whose reciprocal form an arithmetic sequence, is known as:

• arithmetic sequence A
• geometricsequence B
• harmonicsequence C
• none of these D

Sum of integral multiples of there between 4 and 22 is:

• 81 A
• 75 B
• 211 C
• none D

Sum of all odd numbers between 100 and 200 is:

• 6200 A
• 6500 B
• 3750 C
• 7500 D

The sum of 10 A.Ms between 3 and 47 is:

• 50 A
• 250 B
• 100 C
• 500 D

The next term of the sequence 1, 6, 20, 56, ........ is:

• 112 A
• 144 B
• 212 C
• none D

If S is the H.M between 2 and b then b = :

• -10 A
• 10 B
• 7 C
• 5 D

Which number cannot be a term of a geometric sequence ?

• 0 A
• 1 B
• -1 C
• r D