# Computing

## The Basics of BASIC

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## APPENDIX B

I. Inspect the following program. What errors will be detected when the program is run?

10 READ X,Y

20 LET X+2=Y-3

30 LET Z=X+Y-X

40 PRINT “ANSWER Z-Y

50 GO TO 80

60 LET I=(Y+X)(Y-X)

70 GO 50

II. Construct a flowchart and write a program for one of the following problems.

- 1. Calculate a man’s gross weekly pay given his rate-per-hour, his overtime rate-per-hour, and the number of hours that he worked that week,
- 2. Compute the perimeter of a right triangle given the length of the hypotenuse and the length of one leg.

III. will the output look like?

1. | 50 LET I-1 | |

55 PRINT I; | ||

60 IF I> 12 THEN 90 | ||

70 LET I = I+1 | ||

80 GO TO 55 | ||

90 PRINT “ | END” | |

100 END |

2. | 5 READ X |

10 READ Y | |

15 READ Z | |

20 READ Z2 | |

25 PRINT X,Y,X*Y,Z, Z2,Z2-Z | |

30 GO TO 5 | |

35 DATA 5,2.5,40,2.97,37,2,3.1,75 | |

40 END |