Robby is twice as old as Greg If Robby is 46 years old how o

Robby is twice as old as Greg. If Robby is 46 years old, how old is Greg?

A. 15

B. 23

C. 25

D. 27

Solution

B. Create an equation to solve this problem: Robby = 2(Greg).

You are told that Robby is 46. Substitute that information into the formula: 46 = 2(Greg).

Solve for Greg by dividing both sides by 2.

23 = Greg, so Greg is 23 years old.