9th Class General Math Chapter 7 Test07. Arithmetic and Geometric Sequences

Q1. Multiple choice questions (Attempt all · 10 × 1 = 10)

1. Next term of 12,16,21,27 is
   1. 34
   2. 30
   3. 31
   4. 32
2. In a multiplicative series, an is equal to
   1. arn
   2. arn⁺¹
   3. arn⁻¹
   4. arn⁻²
3. For 2,6,11,17,..... , a₅ is
   1. 24
   2. 30
   3. 21
   4. 22
4. A sequence of numbers in which the previous sum is obtained by adding a common value "d" to the next sum. It is called
   1. A.M series
   2. Multiplicative series
   3. A.M middle
   4. G.M series
5. -4,-7,-10, ........... when will a₁₉ be the number?
   1. -55
   2. -58
   3. -59
   4. -61
6. The general term or nth term of a series is expressed.
   1. an₋₁
   2. an₊₁
   3. a₂n₋₁
   4. an
7. If n=18, d=-3, an=81, what will be the value of a?
   1. 130
   2. 131
   3. 132
   4. 133
8. a₅ of 2,6,18, ...... is
   1. 160
   2. 161
   3. 162
   4. 30
9. If there is a last sum in a series, then it is called a series.
   1. limited
   2. Unlimited
   3. Unreal
   4. All this
10. If there is no last amount in a series, then it is called a series.
    1. Limited
    2. Unlimited
    3. Unreal
    4. All this