contestada

the average age of a husband,his wife and daughter three years ago was 27years and that of the wife and daughter five years ago was 20years.husband's present age is​

Respuesta :

let's say:

Husband's present age: a

Wife's present age : b

Daughter's present age : c

(a - 3) + (b - 3) + (c - 3) = 27 x 3

a + b + c = 90

(b - 5) + (c - 5) = 40

b + c -10 = 40

b + c = 50

a = 90 - 50

a = 40

Husband's present age is 40 years old.

nvtexe

Husband's present age is 40 years old.

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