Please help, Income tax is the subject. Will give a thumbs up for your help. Appreciate it! :)

George sold a passive activity in an installment sale. The activity's adjusted basis at the time of the sale was $60,000 and the activity had $20,000 of suspended losses. The sales price was $100,000. The first payment made by the buyer was $20,000. How much of the suspended losses are deductible by George in the year that the first payment was made