Q7:The electricity accounts of residents in a very small town are calculated as follows: > if 500 units or less are used the cost is 2 cents per unit; > if more than 500, but not more than 1000 units are used, the cost is $10 for the first 500 units, and then 5 cents for every unit in excess of 500; > if more than 1000 units are used, the cost is $35 for the first 1000 units plus 10 cents for every unit in excess of 1000; > in addition, a basic service fee of $5 is charged, no matter how much electricity is used. Q8:Write a program which enters the following five consumptions into a vector, and uses a for loop to calculate and display the total charge for each one: 200, 500, 700, 1000, 1500. (Answers: $9, $15, $25, $40, $90)

Q7:The electricity accounts of residents in a very small town are calculated as follows: > if 500 units or less are used the cost is 2 cents per unit; > if more than 500, but not more than 1000 units are used, the cost is $10 for the first 500 units, and then 5 cents for every unit in excess of 500; > if more than 1000 units are used, the cost is $35 for the first 1000 units plus 10 cents for every unit in excess of 1000; > in addition, a basic service fee of $5 is charged, no matter how much electricity is used. Q8:Write a program which enters the following five consumptions into a vector, and uses a for loop to calculate and display the total charge for each one: 200, 500, 700, 1000, 1500. (Answers: $9, $15, $25, $40, $90)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Q7:The electricity accounts of residents in a very small town are
calculated as follows:
if 500 units or less are used the cost is 2 cents per unit;
> if more than 500, but not more than 1000 units are used, the cost is
$10 for the first 500 units, and then 5 cents for every unit in excess of
500;
> if more than 1000 units are used, the cost is $35 for the first 1000 units
plus 10 cents for every unit in excess of 1000;
in addition, a basic service fee of $5 is charged, no matter how much
electricity is used.
Q8:Write a program which enters the following five consumptions into a
vector, and uses a for loop to calculate and display the total charge for
each one: 200, 500, 700, 1000, 1500. (Answers: $9 $15, $25, $40, $90)

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