The Domestic Gas Supply Company records customers’ gas usage figures on a cust

Question

The Domestic Gas Supply Company records customers’ gas usage figures on a customer usage file. Each

record on the file contains the customer’s number, name and address, and their gas usage expressed

in cubic meters. Design a solution algorithm that will read the customer usage file, calculate the

amount owing for gas usage for each customer, and print a report listing each customer’s number,

name, address, gas usage and the amount owing.

The company bills its customers according to the following rate: if the customer’s usage is 60

cubic meter or less, a rate of $2.00 per cubic meter is applied; if the customer’s usage is more

than 60 cubic meters, then a rate of $1.75 per cubic meter is applied for the first 60 cubic meters

and $1.50 per cubic meter for the remaining usage.

At the end of the report, print the total number of customers and the total amount owing to the

Explanation / Answer

STEP-1: START

STEP-2: READ CUSTOMER NUMBER X

STEP-3: READ CUSTOMER USAGE Y

STEP-4: IF Y IS LESS THAN 60 GO TO STEP 6

STEP-5: IF Y IS MORE THAN 60 GO TO STEP-7

STEP 6: CALCULATE USAGE U=Y*$2

STEP-7: CALCULATE Z=Y-60,GO TO STEP-8

STEP-8: CALCULATE USAGE U=60*$1.75+Z*$1.50

STEP:9: OUTPUT U,X

STEP:10 END

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