Question

2. 5,9,16,29,54,?

a 92 b-89 c-79 d-103
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Answer 1

Answer:

Option 'D'

Step-by-step explanation:

the given series is 5,9,16,29,54

if we'll take 1st difference of the terms i.e.

9–5=4

16–9=7

29–16=13

54–29=25

we see that the differences make a series i.e.

4,7,13,25

but we found that the differences do not follow a regular pattern; but if we'll take double difference i.e. difference of difference then we'll see that

7–4=3

13–7=6

25–13=12

so the double difference makes a series i.e. 3,6,12

which follows a regular pattern i.e. every next term is double of its previous terms, so the next term is 24 in this case, so the double difference term is

3,6,12,24

if we'll refer to 1st difference term i.e. 4,7,13,25 we see that after 25 the next term will be 49 (since the difference between next term & 25 is 24)

& if we'll refer to the given series i.e. 5,9,16,29,54 we see that after 54 the next term will be 103 (since the difference between next term & 54 is 49)

I hope u get the answer

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Answer 2

Answer:

d-103 is the answer of this question