Question

The sum of present ages of mother and doughter is 40 years . What will be the sum after 5 years

Answer 1

Answer:

the sum of the age of mother and daughter after 5year will be 50 because -

x + y =40 (according to question)

after five year,

( x + 5 ) + ( y + 5 ) = 40

x + y + 10 = 40

x + y = 40 + 10

x + y = 50