Question :

Would you prefer to receive :

a. RM 10,000 every year for 10 years

b. RM 100,000 in 10 years.

c. RM 6000 every year forever.

d. two lump sum payment consisting of RM 40,000 in three years and also RM 60,000 in 10 years.

Interest rate is 6% per year.

Please show your workings it will help me, thank you !