Question

3,1, 10, 7, 17,49,24,-
?
_,
31​

Answer 1

3,1, 10, 7, 17,49,24,?,

31​

We can split the sequence into two series

3 , 10 , 17, 24 .................[ +7 ].........(1st series)

1 , 7 , 49....................... [ x 7 ].........(2nd series)

As the '?' number falls under 2nd series the value of it should be 7 times the 2nd last previous number in the sequence.

So ? = 7 x 49 = 343

PS: This is not an english question, so please tag your questions with the correct subject so that it can be answered quicker and with higher efficiency. Thanks

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