Question

Find the missing series 12,15,30,37.5,75,? And 88,56,19,?.......

Answer 1

Answer:

1. Missing number is 75 × (5/4) = 93.75
2. Missing number is 19 - 42 =  -23

Step-by-step explanation:

Hey Mate,

(1) The logic behind 1st series is  12,15,30,37.5,75,?

12 × (5/4) = 15

15 × 2 = 30

30 × (5/4) = 37.5

37.5 × 2 = 70.

So, the logic behind the series is ×(5/4) and ×2 Alternatively.

Missing number is 75 × (5/4) = 93.75

(1) The logic behind 2nd series is 88,56,19,?

88 - 56 = 32

56 - 19 = 37

So, the different between 32 and 37 is 5, so number number should be 42.

Missing number is 19 - 42 =  -23