Question

Is now 4years older than b and 2 years older than

c. If in 2 years, a will be twice as old as b, then in 2 years what would be a's age multiplied by c's age? Select one:

a. 28

b. 48

c. 52

d. 50?

Answer 1

A's age multiplied by C's age was 48

Answer 2

Answer:

(b) 48

Step-by-step explanation:

Define x:

Let A be x

B = x - 4

C = x - 2

In two years time:

A = x + 2

B = x - 4 + 2 = x - 2

C = x -2 + 2 = x

Solve x:

A will be twice as old as B

x + 2 = 2(x - 2)

x + 2 = 2x - 4

x = 6

Find their age:

A = x + 2 = 6 + 2 = 8 years old

B = x - 2 = 6 - 2 = 4 years old

C = x = 6 years old

Find A's age multiply by C's age:

A's age multiply by C's age = 8 x 6 = 48

Answer: (b) 48