MCQ

MCQ 11 Mark

The common ratio of a $G.P.$ is $-1$ and its first term is $-1$. then find the sum of the first six terms of the $G.P$.

✓
$0$
B
$-1$
C
$1$
D
$6$

Answer

Correct option: A.

$0$

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MCQ 21 Mark

If $x, 10, -25$ are in $G.P.$, then find the value of $x$.

A
$4$
B
$-25$
✓
$-4$
D
$2$

Answer

Correct option: C.

$-4$

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MCQ 31 Mark

For a $G.P. 0.4, 0.04, 0.004, ....$ find the common ratio.

A
$10$
B
$0.4$
C
$4$
✓
$0.1$

Answer

Correct option: D.

$0.1$

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MCQ 41 Mark

Find the common ratio of $GP$. Whose $n$th term is $3\left(2^{n-1}\right)$.

A
$3$
✓
$2$
C
$6$
D
$1$

Answer

Correct option: B.

$2$

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MCQ 51 Mark

For a $G.P.$ $\frac{ 1 }{ 9 }, \frac{ 1 }{ 3 } \cdot 1 \ldots . .,$ find the seventh term.

A
$6561$
B
$243$
✓
$81$
D
$\frac{1}{81}$

Answer

Correct option: C.

$81$

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MCQ 61 Mark

For a $G.P.$, $T_1= a$ and $T _5=\frac{1}{ a ^{\prime}}$ where, $a >0$ then obtain its third term.

A
$a ^2$
✓
$1$
C
$\frac{1}{ a ^2}$
D
$a$

Answer

Correct option: B.

$1$

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MCQ 71 Mark

For a $G.P.$ $1, \sqrt{3}, 3,3 \sqrt{3}, \ldots. .$ find the $5$ th term ?

✓
$ 9$
B
$9 \sqrt{3}$
C
$27$
D
$ \frac{(\sqrt{3})^5-1}{(\sqrt{3}-1)}$

Answer

Correct option: A.

$ 9$

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MCQ 81 Mark

If the first term of a $G.P.$ is $‘a’$ and the common ratio is $‘b’$. Find the $(n+ 1)th$ term.

✓
$a b^n$
B
$a r^n$
C
$a b^{n-1}$
D
$a r^{n-1}$

Answer

Correct option: A.

$a b^n$

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MCQ 91 Mark

The common ratio of a $G.P$, is $1$ and $S_{10}=40$, then find the first term.

A
$0$
B
$10$
✓
$4$
D
$400$

Answer

Correct option: C.

$4$

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MCQ 101 Mark

Find the 6th term of a $G.P. 0.2, 1,5, ...$

A
$25$
B
$0.5$
C
$0.1$
✓
$625$

Answer

Correct option: D.

$625$

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