Exámenes Nacionales, pregunta formulada por drdelarosa286, hace 1 mes

A través de que se manifestó el sentimiento nacionalista durante la época de la república restaurada.

Respuestas a la pregunta

Contestado por AmiRexD
2

Explicación:

It's given –

Ten years ago B was twice of A in age and the ratio of their present age is 4:3.

And we are asked to find out the sum of thier age.

Let the present age of A be 4x and the present age of B be 3x.

10 years ago–

Age of A = 4x -10

Age of B = 3x -10

(Also ten years ago B was twice of A in age.)

Age of B = 2( 4x -10)

According to the question –

2 ( 4x -10) = 3x -10

8x -20 = 3x -10

8x -3x = -10 +20

5x = 10

x = \dfrac{10}{5}

x = \cancel{ \dfrac{10}{5}}

x = 2

Then, Age of A = 4 x = 4× 2 = 8 years

Age of B = 3 × 2 = 6

Sum of there age = 8 +6 = 14


aleeeeeewww: no
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