Question
There were some beads in Packet K and Packet L. After Gabriel transferred 13 of the beads from Packet K to Packet L, the ratio of the number of beads in Packet K to that in Packet L changed to 3 : 8. Find the ratio of the numbers of beads in Packet L to the number of beads in Packet K at first.
3 m

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There were some beads in Packet K and Packet L. After Gabriel transferred 13 of the beads from Packet K to Packet L, the ratio of the number of beads in Packet K to that in Packet L changed to 3 : 8. Find the ratio of the numbers of beads in Packet L to the number of beads in Packet K at first.