Answer:
The total amount customer will pay for the 1 year plan is $ 648.
Step-by-step explanation:
Product Plan = $60 per month
⇒ Money he pay for 1 month = $ 60
Money He pay for first 6 month = 6 × 60 = $ 360
after 6 month he receives 20% discount monthly,
So, Now he pay for 1 month = 60 - 20% × 60 =
= 60 - 12 = $ 48
Money he pay for last 6 month = 6 × 48 = 288
Total Money he pay in a year = 360 + 288 = $ 648
Therefore, The total amount customer will pay for the 1 year plan is $ 648.