islamic finance question

consider all Shariat compliances and rules while solving it. thank you.

EX.4. Dubai Islamic Bank entered into an Ijarah contract with Wasim as per following terms and conditions. 1. Tjarah term is five years and at the end of term asset shall be transferred to wasim without any charge. 2. Market rent of the car is Rs; 30,000 per month. 3. Expected residual value of car is Rs; 500,000 and bank want to receive this amount as part of installment. 4. Fair value of the car at the time Ijarah is Rs; 1,500,000. 5. 10% of the installment due shall be charged as penalty if payment de layed for more than 15 days. 6. Urboun of Rs; 100,000 received which shall form part of initial install ment if contract executed. 7. Installments are due at the beginning of each month. Following information relates to actual events happened during lease term. 1. Installment number 5, 21, 37, 49 were delayed for period more than 15 days. 2. Asset damaged in month number 41 and repair took one month for a charge of Rs; 50,000. Asset was insured and claim settled at Rs; 45, 0000. (Annual insurance expenses paid by bank amounting to Rs; 18,000). Required:- 1. Calculate monthly installment payable by customer 2. Calculate net cash flows for the period 3. Calculate average profit per year 4. Calculate average return per year on original investment EX.4. Dubai Islamic Bank entered into an Ijarah contract with Wasim as per following terms and conditions. 1. Tjarah term is five years and at the end of term asset shall be transferred to wasim without any charge. 2. Market rent of the car is Rs; 30,000 per month. 3. Expected residual value of car is Rs; 500,000 and bank want to receive this amount as part of installment. 4. Fair value of the car at the time Ijarah is Rs; 1,500,000. 5. 10% of the installment due shall be charged as penalty if payment de layed for more than 15 days. 6. Urboun of Rs; 100,000 received which shall form part of initial install ment if contract executed. 7. Installments are due at the beginning of each month. Following information relates to actual events happened during lease term. 1. Installment number 5, 21, 37, 49 were delayed for period more than 15 days. 2. Asset damaged in month number 41 and repair took one month for a charge of Rs; 50,000. Asset was insured and claim settled at Rs; 45, 0000. (Annual insurance expenses paid by bank amounting to Rs; 18,000). Required:- 1. Calculate monthly installment payable by customer 2. Calculate net cash flows for the period 3. Calculate average profit per year 4. Calculate average return per year on original investment