CPAN112 – Fundamentals of Numeric Computing – Lab 01

Fundamentals of Numeric Computing

CPAN 112 || Lab 01

Please read the following instruction very carefully before answering any questions:

  • Please read all the questions very carefully.
  • Please provide your answers in the boxes below each question, and do not change the text colour.
  • Your answer MUST show the solution procedure.
  • There is no credit if you only state the final answer.
  • Please underline your final answer to each question.
  • Please keep the naming conventions requested in this lab and each question.
  • Once you complete your lab, rename your word document file to the (CPAN112_LabXX_FirstName_LastName). Replace XX with the lab number (e.g. 01). Replace FirstName and LastName with your first name and last name, respectively.

It will be a 10% mark deduction if you do not follow the guidelinesmentioned above

    • Set up a ratio to represent the following: 10 quarters to 12 dimes to 16 nickels
      • 1 quarter = 25 cents
      • 1 dime = 10 cents
      • 1 nickel = 5 cents
      • i.e. 250 : 120 : 80
      •        25 : 12 : 8
  1.  

    • Set up a ratio to represent the following: one-half of an hour to 18 minutes
      • 1hour = 60 minutes
      • i.e. 30 minutes : 18 minutes
      • 30:18 = 5:3
  2.  

    • Solve: 2.18: 1.61 = k : 4.4
      • 2.18/1.61=k/4.4
      • K=2.18/1.61*4.4
      • K=5.96
  3.  

    • Students, A, B, and C occupy floor space of 50 m, 70 m, and 80 m,respectively. If the total rental for the space is $1000 per month, how much rent should student A pay?
      • 1000 should be allocated to 50:70:80
      • 1000/(50+70+80)
      • 1000/200
      • 5
      • A should pay (50*5)=$250
      • B should pay (70*5)=$350
      • C should pay (80*5)=$400
  4.  

    • A clothing company has found that, based on past experience, $17.50 must be spent on labour costs for every $13.25 spent on materials. If a budget of the year 2005 is set at $231 875.00 for materials, calculate the amount that must be budgeted for labour.
      • The ratio is 17.50:13.25=k:231875
      • K=17.50/13.25*231875
      • K = 306250
      • the amount that must be budgeted for labour = $306250
  5.  

    • a) $750 is 33.3% of what amount and b) What is 1/5% of $12150?
  6.  

    • A buyer bought merchandise for $2900. If he sells the merchandise at 66 2/3% above cost, how much gross profit does he make?
      • The merchandise increased 66 2/3 %.
      • The profit he makes is 66 2/3% of 2900
      • Ie. 2900/100*66 2/3 =1933.3
      • The gross profit is $1933.3
  7.  

    • After an increase of 8%, the new amount was $875. What was the original amount?
      • Therefore $875 is 108% of the original amount.
      • Original price = 875/108*100=$810
  8.  

    • A sales representative selling computer parts receives a commission of 3.5% on net sales up to $15 000.00, 7% on the next $6000.00, and 9% on any further sales. If his sales for a month were $34 250.00 and sales returns were $1055.00,what was his commission for the month?
  9.  

    • Don Blair invested $11 500 in a business on January 1. She withdrew $700 on March 1, reinvested $1800 on August 1, and withdrew $500 on September 1. What is Don’s average monthly investment balance for the year?

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