Chapter 7

Chapter 7 - Data Handling
[Solutions for the book "Cs with Python"
by Sumita Arora for class 11]

Page 214

Q1) Write a program to obtain principal amount, rate of interest and time from user and compute simple interest.

Solution :

p=input("Enter principal amount")
r=input("Enter rate : ")
t=input("Enter time : ")
si=(p*r*t)/100
print "The simple interest is ",si

Q2) Write a program to obtain temperatures of 7 days and then display average temperatures of the week.

Solution :

a=input("Enter temp. for Monday ")
b=input("Enter temp. for Tuesday ")
c=input("Enter temp. for Wednesday ")
d=input("Enter temp. for Thursday ")
e=input("Enter temp. for Friday ")
f=input("Enter temp. for Saturday ")
g=input("Enter temp. for Sunday ")
avg=(a+b+c+d+e+f+g)/2
print "The avg. temp. for the week was ",avg

Q3)Write a program to obtain x,y,z from user and calculate expression : 4x^4+3y^3+9z+6π

Solution :

x=input("Enter value for x ")
y=input("Enter value for y ")
z=input("Enter value for z ")
res=(4*(x**4))+(3(y**3))+(9*z)+6(3.14)
print "Value of the expression is :",res

Q4)Write a program that inputs two numbers a and ab and computes |a-b|/(a+b)

Solution :

a=input("Enter value for a ")
b=input("Enter value for b ")
n=a-b
res=abs(n)/(a+b)    #abs here is used to keep a-b positive

Q5)Write a program that reads a number of seconds and prints it in the form: mins and seconds.

Solution :

a=input("Enter in seconds ")
mins=a//60  #as // returns only quotient
secs=a%60   #as % returns only remainder
print "The time in mins and secs is ", mins,"Mins.", secs,"Secs."

Q6)Write a program that reads from user (i) an hour between 1 to 12 and (ii) no.s of hours ahead. The program should then print the time after those many hours.


Solution :

x=input("Enter hour between 1-12 ")
y=input("Enter how many hours ahead? ")
a=x+y
if a>12:
    d=a-12
    print "Time at that time would be ",d,"O'clock"
else:
    print "Time at that time would be ",a,"O'clock"

I am still trying to figure out if we can use a simpler code for the above ques (Q6) If you have any idea/suggestion please submit your code in that form at Home page!

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