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Python Code Challenges #1

Questions

1. Write python code to print   Let's learn Python

    a) Print ('Let's learn Python')

    b) print ("Let's learn Python")

    c) print('Let\'s learn Python')

    d) print ('Let"s learn Python')

2. Write python code to calculate gravitional_force F = G * M * m / r * r for the given constant G = 6.67 x (10**-11) ,Msun = 2.0 x (10**30), mEarth = 6.0 x (10 ** 24) and r = 1.5 x (10 ** 11)

  

    a) gravitional_force =  (G * M * m) / (r ** 2)

    b) print ((G * M * m) / (r ** 2))

    c) print(gravitional_force)

    d) print ((G * M * m) / (r * r))

3. For the given price = 350, what will be the output for the given code:

price = 350

if (price >= 300):

  price *= 0.7 # (1 - 0.3)

elif (price >= 200):

  price *= 0.8 # (1 - 0.2)

elif (price >= 100):

  price *= 0.1 # (1 - 0.1)

elif (price >= 50):

  price *= 0.05 # (1 - 0.05)

else:

  price

print (price)

    a) 245

    b) 245.0

    c) 300

    d) 300.0

4.  What will be the input when the out put is 7777777722222, if the function code is as given below

def rep_cat(x, y):

    return str(x) * 8 + str(y) * 5

print (rep_cat(7, 2))

    a) '7','2'

    b) 7,2

    c) 72

    d) 77777722222

5. Write comprehensive python function code for printing fibonocci numbers foth given number n = 10:

    a) 

def fib(n):

first = 0

  second = 1

  if n < 1:

    return -1

  if n == 1:

    return first

  if n == 2:

    return second

  count = 3

  while count <= n:

    fib_n = first + second

    first = second

    second = fib_n

    count += 1

  return fib_n

n = 10

print (fib(n))

    b) 

n = int(input("Enter a number: "))

a = b = 1

while(b <= n):

     print(b,end=" ")

    c) 

def fibonacci_sequence():

    a,b = 1,1

    while True:

        yield a

        a,b = b, a+b

generator = fibonacci_sequence()

for i in range(10):

    print(generator.__next__())

n = 10

fibonacci_sequence()

       d)  

fibonacci_numbers = [0, 1]

n = 10

for i in range(2,n):

    fibonacci_numbers.append(fibonacci_numbers[i-1]+fibonacci_numbers[i-2])

 

Answers

Answers

1. b

2. b, d

3. b

4. b

5. d

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