.P and Q are partners in a venture. p contributed $20,000 for nine months, and Q contributed $50,000 for one year. find each person's share of profit of $6,300. 2. a worker's period of duty increases from 56 hours to 72 hours, but his wages decrease by 15%. by what % do the new wages increase or decrease. 3. divide 3420 into two parts such that one part is 28% more.