Question

4. 900, 18, 180, 36, 45, 108,_, 432
1) 25
2) 15
3) 9
4) 7​

Answer 1

Answer:

9 would be answer

Step-by-step explanation:

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Answer 2

2) 15 will come in place of blank in the series.

900, 18, 180, 36, 45, 108, 15, 432

Explanation:

The series given is $900, 18, 180, 36, 45, 108, --, 432$

As we can see that it is the combination of 2 sequences, the first one is odd terms, and 2nd sequence is even terms.

We need to fill the odd term, so we will focus on the sequence formed by the odd term,

$900, 180, 45,--.$

We can identify that,

$\frac{900}{180}=5\\ \\\frac{180}{45}=4$

Similarly, let the required term be x.

$\frac{45}{x}=3\\\\ x=15$

Hence the required term is 15.

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