please use the following information to calculate the one-time net premium of a and B. (immediate payment of insurance benefits to families in case of death)
• A: the insured aged 35, with an insurance premium of 100 won and a 15-year fixed-term death insurance
• B: for the insured aged 35, the insurance premium is 100 won and the 15-year survival insurance
• all x Death force = 0.01, resume = zero point zero five