the fare for MRT from Tampines to Buona Vista, plus $0.39. note:
no fare cap. hence:
MRT: $1.57
074: $0.39 (Rebate $0.25)
Total: $1.96
If you don't mind saving 6 cents, you can do an all-SBST stint.
Take 23 from Tampines Int to Rochor Canal Rd, then take 48 and
finally transfer to 74 at Holland Dr.
023: $1.35
048: $0.55 (U.P. $0.80)
074: $0.00 (U.P. $0.39)
Total: $1.90