09 - Interpret Correct or Complete Algorithms #1

  True

  False

  All of the above

  Sequence

  Iteration

  Selection

INPUT hours_worked
INPUT pay_rate
IF hours_worked <= 35 THEN
gross_pay = pay_rate x hours_worked
ELSE
gross_pay = (pay_rate x 35)+
(1.5 x pay_rate x
(hours_worked - 35))
ENDIF
OUTPUT gross_pay
END

  1.5 + 35 is added to the extra hours rate

  time-and-a-half is paid for the extra hours

  then 35 is added to the extra hours

  the gross_pay is paid for the extra hours

INPUT item_price
INPUT vat_rate
vat_amount = item_price x vat_rate
final_price = item_price + vat_amount
OUTPUT final_price
END

  calculates the final vat amount of any given item with a price of x

  calculates the final price of several items based on their vat rate x the vat amount

  calculate the Sales Tax (VAT) of an item and then works out the final price of an item

  None of the above

INPUT total_items
SET total_cost = 0
SET count = 0
WHILE count < total_items
INPUT item_price
total_cost = total_cost + item_price
count = count + 1
ENDWHILE
average_price = total_cost / total_items
OUTPUT average_price
END

  two variables - this program calculates the average price for a number of items

  None of the above

  five variables - this program calculates the average price for a number of items

  five variables - this program calculates the total cost divided by the average price, which gives the final price

  Algorithmic Thinking

  Pseudocode

  English Code (EC)

  Assembly language

str(3)
int("3")
float("3.14")

  Masting

  Coling

  Casting

  Pseudolanguage

for i = 0 to 9
    print("Hi")

  True

  False

password = ""
while password != "CdRtp45@"
password = input("Password?")
endwhile

  The input is accepted and the 'end while' comes into play

  "CdRtp45@" must be entered else, the program repeats

  A prompt asking the user to enter: "CdRtp45@ is displayed

  Error

switch coinResult:
case "heads":
print("You got heads")
case "tails":
print("You got tails")
default:
print("Not valid coin")
endswitch

  While loops

  switch statement (switch/case) - python does not have this and a dictionary could be used to achieve the same thing

  IF statements

  For loops

a = 0
b = 0
procedure move(x: byVal, y: byRef)
x = x + 1
y = y + 1
endprocedure
move(a, b)
print(a)
print(b)

  the variable x will be passed to the procedure directly. Changing x changes the original value

  The final value of x = a

  the variable x will be passed into y and changing x will change the original value

  the variable x will be passed to the procedure by copying the value. Changing x in the procedure won’t change the original value

some_global = 10
def func1():
 some_global = 20
def func2():
 print(some_global)
func1()
func2()

  30

  20

  10

  40

def func1():
 global some_global #use global keyword
 my_global = 20

  TRUE

  FALSE

(10 >= 1) and (1 < 2)

  FALSE

  TRUE

>>> (1>2) and (9>=1)

  TRUE

  FALSE

limbs = 4
if limbs == 4:
 print('no one shall pass')
elif limbs > 0 <4:
 print('tis but a scratch')
else:

  4

  1

  2

  3

n = 0
for num in range(5):
 n = n + num
print (n)

  10

  5

  15

  20

while answer!=”computer”
 answer=input(“What is the
password?”)
endwhile
do
 answer=input(“What is the
password?”)
until answer == “computer”

  None of the above

  The while loop will stop if the condition is True

  The while loop will keep looping while its condition is True.

  The while loop will end if the answer is = "open123"

while 1 == 1:
 print ("lol")

  It prints "lol" exactly once

  It prints "lol" twice and then crashes, as 1 is already equal to 1

  It creates an infinite loop because 1 is always equal to 1

  It does not print "lol" at all, because the while loop condition is never met

	01 input b 
02 for x = 1 to 100 
03     print b * x
04 next

  TRUE

  FALSE