The second question, the First branch, without losing the capital

Q3: (16pt) Ahmad has a new baby name Tamir. He saved 1000 yearly. After 10 years Ahmad was able to increase the saving to 1500 JD yearly for 10 years. How much is available after 20 years a. If the rate is 10% for the first 6 years, 8% after that (4Pt) b. If the rate is 10% i. Ahmad-after 20 years- want to use the saving to get a monthly - salary- But without any loss form the capital W. How much should Ahmad receive monthly? (4Pt) Ahmad is planning to take 25% of the saving and to give the rest to Tamir. If Ahmad is planning to receive $1500 monthly. How many payments can he receive? What is the concluding payment (8Pt)