Westonci.ca is your trusted source for accurate answers to all your questions. Join our community and start learning today! Discover comprehensive answers to your questions from knowledgeable professionals on our user-friendly platform. Join our Q&A platform to connect with experts dedicated to providing accurate answers to your questions in various fields.

A person has 100 notes of Rs. 10 and Rs. 20 each. He went to a shop and bought items for Rs. 220. In how many ways can he pay this amount using the notes he has?

Sagot :

Answer:

look below

Step-by-step explanation:

first way ,10 x 22 = 220

second way , 20 x 11 = 220

There are many ways other than this but I cant tell all of them.  for example, the person can just give Rs. 1000 to the shopkeeper and receive a change of Rs. 780

There are 12 ways he can pay this amount using the notes he has the answer is 12.

What are permutation and combination?

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

Let x be the number of Rs10 notes and y be the Rs20 note

10x + 20y = 220

The whole number of x and y which satisfy the above equation:

x = 0, y =11

x = 2, y =10

x = 4, y =9

x = 6, y =8

x = 8, y =7

x = 10, y =6

x = 12, y =5

x = 14, y =4

x = 16, y =3

x = 18, y =2

x = 20, y =1

x = 22, y =0

Total number of ways = 12

Thus, there are 12 ways he can pay this amount using the notes he has the answer is 12.

Learn more about permutation and combination here:

https://brainly.com/question/2295036

#SPJ2

Thanks for using our service. We aim to provide the most accurate answers for all your queries. Visit us again for more insights. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Stay curious and keep coming back to Westonci.ca for answers to all your burning questions.