In this question,there is a benefit that goes: a pension payable monthly in advance after 10 years at a rate of 10,000 per annum if both lives are alive and 5000 pa if only one life is alive Equation is: 5000(v^10*10p55*adue65^((12))+v^10*10p50*adue60^((12))) The solution has only used the benefit with 5K payment but not the payment of 10000 which is bolded above. I did not understand this part. Could anyone please explain? Thank you