Question

find

missing number 1, 6, 15, 28, 45 ......
(a) 56
(b) 66. (c)57
number with explanation​

Answer 1

Answer: 66

Step-by-step explanation: 1 + 5 = 6

6 + 9 = 15

15 + 13 = 28

28 + 17 = 45

In each ease we are adding 5,9,13,17  each having a gap of 4

So in next number we will add 21

Therefore , 45 + 21 = 66

Please Mark it Brainliest

Answer 2

Answer:

66

Step-by-step explanation:

6-1=5

15-6=9

28-15=13

45-28=17

x-45=17+4

x-45=21

x=21+45

x=66