Question: What is the next number of this number sequence 27, 37, 47, _Â Puzzle
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Correct Answer: 57
By using arithmetic progression (AP) series logic formulaÂ
a,a+d,a+2d,a+3d,……….
In this question, a =27
d – difference between the first and second number
d= 37- 27=10
We find out the fourth number,
a +3d = 27 + 3(10)
a + 3d = 27+ 30
a + 3d = 57
So 57 is the next term in the series.
Also read: Five Sisters in a Room Puzzle Riddle