Question

Mary is twice older than her sister. In 5 years time, she will be 2 years older than her
sister. Find how old are they both now.

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Answer 1

Step-by-step explanation:

Let age of mary =m

Let age of her sister =s

Given that, m=2s

After 5 years, mary will be 2 years older than her sister.

(m+5)=(s+5)+2

∴m=s+2

m=2s⇒s+2=2s⇒s=2

∴m=4

Mary is 4 years old and her sister is 2 years old.

hope it helpful

Answer 2

Hope this helps.......