Question

plz answer this question

Answer 1

Answer:

let age of father be x and age of son be y

x+y=70

2x+2y=140

after 10 years their ages will be x+10 and y+10

x+10=2(y+10)

x+10=2y+20

x+10-2y-20=0

x-2y=20-10

x-2y=10

2x+2y+x-2y=140+10

3x=150

x=50

x+y=70

50+y=70

y=70-50=20

Answer 2

Answer:

D50 years 25 years Is ans