Question

3,15,35, 63,99, ____​

Answer 1

Answer:

143

Step-by-step explanation:

3 = 2 squared - 1

15 = 4 squared - 1

35 = 6 squared - 1

63 = 8 squared - 1

99 = 10 squared - 1

then the next number

= 12 squared - 1 = 144 - 1 = 143

(All the numbers in this pattern are even numbers squared - 1)