Question

66, 67, 70, ?, 106, 187​

Answer 1

Answer:

the answer to this question is 71

Answer 2

Answer:

79

Step-by-step explanation:

First we have to analyse the series..

it is in increasing order..

have to calculate difference of the numbers in series..

66 67 70 __ 106 187

difference is 1,3,_,_, 81.

so we got the point is that, series difference is multiples of 3.

=) Series difference is 1 3 9 27 81.

1×3, 3×3, 9×3, 27×3

So

66+1= 67

67+3= 70

70+9=79

79+27=106

106+81=187.

CONCLUSION: Answer is 79. (See attached picture for series explanation )