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The price of a watermelon at a fruit stand goes up 7 cents each month. The first month the stand was open, a watermelon cost $1.25.


What will the cost of a watermelon be in the 30th month?


A.) $ 1.55

B.) $ 3.28

C.) $ 3.35

D.) $ 21.55

Verified Answer :

Answer: Option 'B' is correct.

Step-by-step explanation:

Since we have given that

Cost of watermelon in the first month = $1.25

Every month it goes up by = 7 cents

so, it becomes an arithmetic progression:

1.25,1.32,1.39,......

So, here a = first term = 1.25

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n = 30

So, our equation becomes,

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Hence, cost of a watermelon would be $3.28 in the 30th month.

Therefore, Option 'B' is correct.

Answer:

B.) $ 3.28

Step-by-step explanation:

Got it right on the test.