Question

15,20,40,125,505,?. what comes in question mark​

Answer 1

Answer:

it's not a correct question

Answer 2

Question :- 15,20,40,125,505, ? what comes in question mark ?

Solution :-

As we can see that, series is increasing in random order. (No logic of multiplication.)

So, Solving by difference of differences we get,

15 20 40 125 505 ?

5 20 85 380 1085

15 65 295 705

50 230 410

180 180

then,

→ Next number in the series will be = 505 + 1085 = 1590 (Ans.)

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Use inductive reasoning to determine the next two terms in the sequence:

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