Question

When am 4 yrs, my brother was half my age, now am 15 yrs how many yrs is my brother?​

Answer 1

Answer:

Let your age be a and your brother's age be b when a=4 a-b= always a constant ... If my brother is 25 years old, how old am I? ... When my brother was 15 years old, I was just 4 years.

Step-by-step explanation:

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