Question

the sum of the ages of Bina and her friend is 25 years.Bina is one year older then her friend.How old is Bina ​

Answer 1

Answer:

Sum of ages = 25

Let friend's ages be x

Bina = x + 1

⇒ x + x + 1 = 25

2x + 1 = 25

2x = 25 - 1 = 24

2x = 24

x = 24

      2

x = 12

Bina's friend's age = 12

Bina's age = 12 + 1 = 13

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Answer 2

Answer:

bina's age =13 years

friends age=12 years

Step-by-step explanation:

let her friend's age be x,

then  Bina's age be (x+1)

according to the question:

x+(x+1)=25

=>2x+1=25 years

2x=25-1= 24 years

x=24/2=12

therefore, bina's age is x+1 i.e. 12+1 =13 years

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