Question

Find the Missing Number in the given series : 71, 55 , 41, 29, ?, 11​

Answer 1

Step-by-step explanation:

71 -55 = 16 = 8×2

55-41 = 14 =7×2

41- 29 = 12 =6×2

29-x = 10 =5×2

x= 19

19 -11 = 8 =4×2

so missing no. is 19

Answer 2

Answer:

Answer = 21

Step-by-step explanation:

71-55=16

55-41=14

41-29=12

and so on the sum u see above is subtraction of odd numbers so the missing number is 21

: 10 + 11 = 21

and 1

21 - 10 = 11

Hence proved the sum : 71 , 55 , 41 , 29 , 21 , 11

the sum is done