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.
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 Please underline your final answer to each question.
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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
 Â Â Â Â Â Â 25 : 12 : 8
 Set up a ratio to represent the following: 10 quarters to 12 dimes to 16 nickels

 Set up a ratio to represent the following: onehalf of an hour to 18 minutes
 1hour = 60 minutes
 i.e. 30 minutes : 18 minutes
 30:18 = 5:3
 Set up a ratio to represent the following: onehalf of an hour to 18 minutes

 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
 Solve: 2.18: 1.61 = k : 4.4

 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
 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?

 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
 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.

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

 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
 A buyer bought merchandise for $2900. If he sells the merchandise at 66 2/3% above cost, how much gross profit does he make?

 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
 After an increase of 8%, the new amount was $875. What was the original amount?

 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?
 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?

 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?
 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?