TUF Company provided for doubtful accounts expense monthly at 3%of credit sales. The balance in the allowance for doubtful accounts was P1,000,000 on January 1, 2020. During 2020, credit sales totaled P20,000,000, interim provisions for doubtful accounts were made at 3% of credit sales, P200,000 accounts were written off, and recoveries of accounts previously written off amounted to P50,000. An aging of accounts receivable was made on December 31, 2020. 1 - 60 days 61 - 180 days 181 - 360 days More than one year 6,000,000 2,000,000 1,500,000 500,000 10,000,000 10% uncollectible 20% uncollectible 30% uncollectible 50% uncollectible Based on the preview of the more than one year category, additional accounts of P100,000 are to be written off on December 31, 2020. 1. What amount should be reported as doubtful accounts expense for the current year? 2. What is the year-end adjustment to the allowance for doubtful accounts on December 31, 2020? 3. What is the carrying number of accounts receivable on December 31,2020