Answer:

' How many cans of cleaner are required for a 12 by 17 ft carpet?
' One can will clean 80 square feet
'
LET SQUAREFEET = 12 * 17
PRINT "Required cans = ", SQUAREFEET / 80
END

The number of square feet in a rectangle is the product of the width and breadth, here 12 * 17. Divide the number of square feet in the carpet by the number of square feet one can of cleaner will clean to find the number of cans needed.

Variables in PRINT statements

The program will write out:

Required cans =       2.55

Often a program calculates several things as it runs and keeps each result in a variable. Only at the end does the program print out everything it has calculated by using the variables in a PRINT statement.

QUESTION 15:

Modify the previous program so that it calculates the number of cans of carpet cleaner and stores the result in a variable called CANS. Use the PRINT statement to print out SQUAREFEET and CANS and appropriate captions.