Question

15 , 17 , 26 , 47 , 86 , ?

tell me with explain

a.149
b.132
c.144
d.169​

Answer 1

Given :  15 , 17 , 26 , 47 , 86 , ?

To Find : Missing number

a.149

b.132

c.144

d.169​

Solution:

15

15  +  1³  + 1  = 17

15   + 2³  + 3 =  26

15  +  3³ + 5 = 47

15 +   4³ + 7  = 86

15 +   5³ + 9   = 15  + 125 + 9  = 149

Logic  is  

Tₙ₊₁ = T₁  +   n³  + (2n - 1 )     and T₁ = 15

149 is missing number

Learn More:

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Answer 2

Answer:

152

Step-by-step explanation: