Question

6.5 7 16 52.5 () 1102.5​

Answer 1

Answer :

The missing number is 218.

Step by step explanation :

Hey mate,

Given Series : 6.5, 7, 16, 52.5, X , 1102.5​ .

Solution :

#1

{ ( 6.5 × 2 ) + 1 } / 2

{ 13 + 1 } / 2

{ 14 } / 2

7

#2

{ ( 7 × 4 ) + 4 } / 2

{ 28 + 4 } / 2

{ 32 } / 2

16

#3

{ ( 16 × 6 ) + 9 } / 2

{ 96 + 9 } / 2

{ 105 } / 2

52.5

#4

{ ( 52.5 × 8 ) + 16 } / 2

{ 420 + 16 } / 2

{ 436 } / 2

218

#5

{ ( 218 × 10 ) + 25 } / 2

{ 2180 + 25 } / 2

{ 2205 } / 2

1102.5

The missing number of the number series is 218.