C++ Answers

A passenger train travels at a speed of 72 km/h. A man on the passenger train observes a

goods train travelling at a speed of 54 km/h in the opposite direction. If the good train passes him in X

seconds, write a C++ function to find the length of the goods train.

Create a struct point to represent a point in cartesian coordinate system

provide member functions

default constructor

input

output

distance(returns the distance between two point objects, the function takes one object as an argument)

is zero(determines if a point is the center)

midlepoint (computes the middle point of an object from origin and returns the answer in a point object)

is equal to(compare two points)

isGreater than (compares two point in terms of the distance from the center)

write a pseudocode to output sum

Write a C program that read numbers from an integer array and graph the information in the form of bar chat. Sample output is given below.

Element Value Histogram

0 19 *******************

1 3 ***

2 15 ***************

3 7 *******

4 11 ***********

5 9 *********

6 13 *************

7 5 *****

8 17 *****************

9 1 *

NuMetro has a special on movies for all members of the public but special discounts for students and pensioners. If

pensioners or students buy a movie ticket they receive 10% if they buy a movie and popcorns, they receive 20%

discount. Other customers only receive a discount when they buy a movie ticket and popcorn; there is no discount for

just a movie ticket alone.

Write a program named question5b.cpp that will consist of two functions. The program must prompt the user for type of

customer (‘p’ for pensioner, ‘s’ for student, ‘o’ for other). It must then call the relevant function according to that entry.

The first function must receive the customer type and calculates discount for pensioners and students. The second

function calculates the discount for customers that are not pensioners or students.

Write a program to calculate and display sum of the following series using for loop x+x2+x3+………xn