Answer:

i) sumi is 9 years older
 in 10 years she will be twice here age compared to ten years ago

 so , [tex]x[/tex] x 2 = y = 10 x 2 = 20

sumi is 10 years old and her brother is 1 year old

i am not sure about the second one, hope the above helps

Step-by-step explanation:

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Answer:

Answers are : (i) 29 years, 38 years

(ii) Mintu's age = 20 years

Shanu's age= 28 years