Question
There were some pens in Packet P and Packet Q. After Gabriel transferred 35 of the pens from Packet P to Packet Q, the ratio of the number of pens in Packet P to that in Packet Q changed to 1 : 7. Find the ratio of the numbers of pens in Packet Q to the number of pens in Packet P at first.
3 m

Click button first when a symbol is required. X

There were some pens in Packet P and Packet Q. After Gabriel transferred 35 of the pens from Packet P to Packet Q, the ratio of the number of pens in Packet P to that in Packet Q changed to 1 : 7. Find the ratio of the numbers of pens in Packet Q to the number of pens in Packet P at first.