Question

3,3,9,__,93,213 full the missing number?
option
a 49
b 33
c 46
d 43​

Answer 1

Answer:

3, 3 --> 6

3, 6 --> 9

6, 9 --> 15

9, 15 --> 24

Therefore the next number is 15 + 24 = 39.

Step-by-step explanation:

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Answer 2

The value of the missing term will be 21.

Given:

A series: 3, 3, 9, __, 93, 213

To Find:

We need to find the value of the missing number.

Solution:

Let us take the last term, 213.

213 can be written as-

213 = 3⁵ - 3³ - 3

= 243 - 27 - 3

= 213

Similarly, if we look at 93,

93 = 3⁴ + 3² + 3

= 81 + 9 + 3

= 93

Thus, the missing term (x) will be-

x = 3³ - 3¹ - 3

x = 27 - 3 - 3

x = 27 - 6

x = 21

Hence, the value of the missing term will be 21.

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