Question

Micah is twice as old as Richard. Richard is four times as old as Ken. Ken is six years old. How old is Micah?

Answer 1

Ken is six years old

Richard is four times as old as Ken = 4 x 6 = 24 years old

Micah is twice as old as Richard = 2 x 24 = 48 years old

Answer

Micah is 48 years old

Answer 2

Let Micah = m, Richard = r, Ken = k

k = 6, r = 4k, m = 2r

First, plug in 6 for k

r = 4(k) = 4(6) = 24

Next, plug in 24 for r.

m = 2(r) = 2(24) = 48

Micah is 48 years old.

hope this helps

~Audiomachine