Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100 grams or part thereof. What could be the weight in grams of a package for which the charge is $1.55 ?
A) 1155 B) 1145 C) 1040 D) None
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Given:
Courier charges for packages to a certain destination are 65 cents for the first 250 grams and 10 cents for each additional 100 grams or part thereof.
To find:
What could be the weight in grams of a package for which the charge is $1.55 ?
Solution:
From given, we have,
65 cents for first 250 grams
10 cents for additional 100 grams or parts
Final charge = $1.55
= 0.65 + 9 × 0.10
= charges for 250 grams ($0.65) + charges for 800 - 899 grams ($9 × 0.1)
Thus the total weight will be between 1050 and 1149 grams.
∴ Option (B) 1145 is correct
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