Question

110,99,86,....54,35 solve this question of number series​

Answer 1

a=110

d=a2-a1=99-110=-11 d=-11

an=35

an=a+(n-1)d

35=110+(n-1)-11

35=110-11n+11

35=121-11n

-121+11n=35

11n=35+121

11n=156

n=156/11

Answer 2

the answer is :---

71

STEP BY STEP EXPLANATION :---

110-99=11

99-86=13

86 -71=15

71-54=17

54-35=19

here the common difference between two numbers is an odd no. starting from 11

HOPE THIS HELPS.

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