Can you solve this riddle?

Robert and David were preparing to have a water balloon fight. "No fair," cried Robert. "You have 3 times as many as I do!" David said, "Fine!" and gave Robert 10 more balloons. "Still not fair!" argued Robert. "You still have twice as many as I do." How many more balloons must David give Robert for them to have the same number?

Click here for the answer

Or Right Click and Copy the Address Below to Share on Forums

URL: