The sum of ages of father and his son is 60 years. if the difference between their ages is 40 years then find the age of father and son?

Father's age is 50, Son's age is 10

Step-by-step explanation:

X+Y=60

X-Y= 40

Let X represent the Father's age while Y represents the Son's age;

therefore, from the two equations, the value of X is

X= 60-Y

X= 40+Y  then putting in the value of x

(40+Y) + Y= 60,

40+2Y=60

2Y=60-40 =20

Y= 10,

Now that we know the value of Y, we can get the value of x

If X+Y=60, then

X+10=60,

X=60-10,

X= 50

12

step-by-step explanation:

12 + 5 = 17

12x2=24

24-7=17

the correct option is b

step-by-step explanation: