Question

11th term is 1100.find the sum of 21 terms

Answer 1

Step-by-step explanation:

The sum of 1 term 1100/11=1

the sum of 21 terms 21×1=2100

Answer 2

Answer:

2100

Step-by-step explanation:

imagine that the factor is x

then,

11x =1100

x=100

So if factor x= 100 then

21th factor =21x=21×100=2100

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