Question
There were some marbles in Packet Q and Packet R. After Justin transferred 15 of the marbles from Packet Q to Packet R, the ratio of the number of marbles in Packet Q to that in Packet R changed to 1 : 5. Find the ratio of the numbers of marbles in Packet Q to the number of marbles in Packet R at first.
3 m

Click button first when a symbol is required. X

There were some marbles in Packet Q and Packet R. After Justin transferred 15 of the marbles from Packet Q to Packet R, the ratio of the number of marbles in Packet Q to that in Packet R changed to 1 : 5. Find the ratio of the numbers of marbles in Packet Q to the number of marbles in Packet R at first.