Question

Q6.find what will come in place of the question
mark (?)
15 19 28 ? 69 105​

Answer 1

SOLUTION

TO DETERMINE

The number in place of the question mark ( ? )

15 19 28 ? 69 105

EVALUATION

Here the given sequence is

15 19 28 ? 69 105

1st number = 15

2nd number

= 19

= 15 + 4

= 1st number + 2²

3rd number

= 28

= 19 + 9

= 2nd number + 3²

6th number

= 105

= 69 + 36

= 5th number + 6²

Thus the pattern is like below

nth number = ( n + 1 )th number + n²

Thus we get

4th number

= 3rd number + 4²

= 28 + 16

= 44

FINAL ANSWER

Hence the required number in question mark ( ? ) is 44

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Learn more from Brainly :-

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