Answer:
b
Step-by-step explanation:
no clue just copied someone else tehehe
I found this for you. It even tells you how the answer was achieved.
Answer:
B. 10cm
Step-by-step explanation:
Because if you divide 34 by 2 you get 17. Then subtract 17 minus 5 which equals 12 so you multiply 12 times 2 for Janos' age and 12 times 3 for David's age which makes 60 but not 61. Their present age is 17.
The answer to your ? Is A