pa help po... na pic po ung question
![Pa Help Po Na Pic Po Ung Question class=](https://ph-static.z-dn.net/files/db3/c4bb19b05d66235bd699d67ca1488250.jpg)
Answer:
a po cause all the numbers in the pic can group into 5 ...the 10 and 20 can't group into 15 so it's 5