Question Detail

In the series 2, 6, 18, 54, ... what will be the 8th term ?

4174
4150
4274
4374

Answer: Option D

Explanation:

We can see the given series is in G.P.
as 2*3 = 6, 6*3 = 18, 18*3 = 54
So a = 2 , r = 3
nth term in G.P. is
\begin{aligned}
ar^{n-1} \\
= 2*3{8-1} \\
= 2*3^7 \\
= 2*2187 = 4374
\end{aligned}

1. Which number would replace the question mark in series
7,12,19,?,39

Answer: Option B

Explanation:

Pattern is , +5, +7, +9
Missing Number = 19+9 = 28

2. 1,2,6,24, ?

Answer: Option C

Explanation:

Pattern is *2, *3, *4
So next number is the series will be *5
24*5 = 120

3. 2,15,41,80, ? . Complete the series.

Answer: Option B

Explanation:

Pattern is +13,+(13*2), +(13*3)
Next will be +(13*4) = 80+52 = 132

4. 6, 11, 21, 36, 56, ?
what will replace the question mark in the series ?

Answer: Option B

Explanation:

Pattern is +5, +10, + 15, +20

Next number in the series will be 56 + 25 = 81

5. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

Answer: Option A

Explanation:

Please look carefully at the series, its pattern is,
-1, +2, -1, +2, -1, so next will be +2
23+2 = 25

Question Detail

In the series 2, 6, 18, 54, ... what will be the 8th term ?

1. Which number would replace the question mark in series 7,12,19,?,39

2. 1,2,6,24, ?

3. 2,15,41,80, ? . Complete the series.

4. 6, 11, 21, 36, 56, ? what will replace the question mark in the series ?

5. Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?

1. Which number would replace the question mark in series
7,12,19,?,39

4. 6, 11, 21, 36, 56, ?
what will replace the question mark in the series ?