Question

14, 19, 133, 63 : 15, 26, 156, 51 : 11, 29, ?, 20

Answer 1

Answer:

87 will be the answer

explaination: let missing number be x ,

In the first pair of numbers

I.e. 14, 19, 133, 63

difference between 63 and 14 is 49 which the square of 7 and 19*7= 133

similarly , in second pair of numbers I.e. 15, 26, 156, 51

difference between 51 and 15 Is 36 which is square of 6 and 26*6= 156

similarly taking third pair of numbers ,

difference between 20 and 11 is 9 which is a square of 3 and 29*3 =x

x = 87

therefore missing number is 87