Question

Pemba is 5 yrs older than her sister.If the sum of their ages is 35 yrs, find their ages​

Answer 1

Pemba is 20 and her sister 15

Explanation:

Let the sisters age be x. As pemba is five years older, her age is x+5.

Now, the sum of their ages is 135. So, by combining the two ages we get:

=>X+(x+5)=35

x+x+5=30

2x=30

x = 15

Then, substitituing this value of x into our equations for the ages of the sisters we get

sisters age 15 years old

Pemba age (15)+5=20 years old

Answer 2

his sister 15 and he 20