For positive integers a and b, let a triangle b be defined as ab+1. If x and y are positive integers and x triangle y equals 16, which of the following could be a value of y? I.1 II. 2 III. 3 (A) I only (B) II only (C) I and III only (D) II and III only (E) I, II, and III

Asked by Last Modified  

31 Answers

Learn Class XI-XII Tuition (PUC)

Follow 2
Answer

Please enter your answer

Sandhya Repala

Qualified and experienced tutor in exploring prodigies

xy +1=16 then xy=16-1=15 xy=15 then y can be 1 or 3 as 1 and 3 are factors of 15
Comments
Dislike Bookmark

Math magician

C
Comments
Dislike Bookmark

Math Magician

c
Comments
Dislike Bookmark

I am a Mechanical engineer having 7 years of teaching experience of Maths , Physics and chemistry

C
Comments
Dislike Bookmark

SME in Mathematics & Statistics

x triangle y = 16 xy + 1 = 16 xy = 15 since, x and y are positive integers, y can take values 1, 3 or 5. From the options, y can be 1 or 3. Hence, correct option is (C) I and III only.
Comments
Dislike Bookmark

Maths Tutor upto Graduation level

As it is given to you that x triangle y = 16 and x triangle y means xy+1 so, xy + 1 = 16 or xy = 15 since, x and y are positive integers, so the product will be 15 only when x and y are any of the following pairs: (1,15),(3,5),(5,3),(15,1). So, the possibility of y are 1,3,5 and 15. Here the options...
read more
As it is given to you that x triangle y = 16 and x triangle y means xy+1 so, xy + 1 = 16 or xy = 15 since, x and y are positive integers, so the product will be 15 only when x and y are any of the following pairs: (1,15),(3,5),(5,3),(15,1). So, the possibility of y are 1,3,5 and 15. Here the options are 1and3 as no 5 and 15 are given in the choices. Hence, y can take values 1 and 3. So, go with C. From the options, y can be 1 or 3. Hence, correct option is (C) I and III only. read less
Comments
Dislike Bookmark

Lecturer in Mathematics in IIT level, 22 years experience and qualification M.Sc(Maths)

c
Comments
Dislike Bookmark

MATH EXPERT

The equation will be xy+1=16 xy=15 means x and y should be factor of 15 so y can have 1 or 3 C is the correct option
Comments
Dislike Bookmark

C
Comments
Dislike Bookmark

Mathematics Tutor

C: I and III only
Comments
Dislike Bookmark

View 29 more Answers

Related Questions

There is no agreement regarding sharing of profits (or) partnerships salary. Rose is a whole-time partner whereas Lilly does not attend business regularly. Rose claims Rs 3,000 salary a month and 60% of balance profits Rs 24,600 Lilly advanced Rs 10,000 as loan and now she claims 10% interest. State how you will settle the accounts.
No salary to any partner. Profits will be shared equally. Interest on loan will be paid at 6% p.a.
Shubham
0 0
6
Is there a guide to maths of XI and XII of IGCSE syllabus? It is because text book questions cannot be solved with clues taken only from their examples. Kindly guide. Thanks.
You can get MATHEMATICS revision guide by OXFORD PUBLISHERS
Kuruvila Daniel
If a leap year is selected at random, what is the chance that it will contain 53 Tuesdays?
2/7
Kumar Upendra Akshay
Do plant cells have mitochondria? Explain.
Yes plants have mitochondria for production of energy
Mano
1 0
8
In 1900, __________ proposed a formula which explained I detail the whole shape of the black body spectrum for all wavelengths. (Wein, Rayleigh, Einstein, Maxwell Plank)
Max Plank
Narendra Kumar
0 0
8

Now ask question in any of the 1000+ Categories, and get Answers from Tutors and Trainers on UrbanPro.com

Ask a Question

Related Lessons

4 Things Every Tech Startup Needs to Know About The Coaching Industry
Knowledge on any subject is widely available to those who wish to learn. However, just gathering knowledge from other people doesn’t guarantee results in business. Results come from applying what...

Rajesh N v

3 0
1
Tips for Studying Calculus
Calculus is considered to be one of the most difficult classifications of advanced mathematics. In order to do well in calculus you need to have strong base and knowledge of algebra and trigonometry. Learning...
T

Tutorcomp

0 0
0
Partnership Basic Questions
CHAPTER:2 Accounting for partnership firms: Basic concept State the conditions under which capital balances may change under the system of a Fixed Capital Account. A is partner in a firm. His capital...

Mahesh Kumar

1 0
0
How to Remember the Very Long Answers and Formulas Specially for 10th and 12th Class Students ??
I am generally very good at remembering things, so here are a few tips: 1. Know how many you need to learn. Write them all down on one page and number them. Say, for example, you have 20. Then write the...

Hanamant Kullur

6 0
0
Analysis of functional groups in organic chemistry
We must know the basic reactions of various functional group. Keeping this in mind, a summery of important reactions of the alcohol functional group are summerised below . ALCOHOL ( -C-OH) Evolve...

Vivek P S

0 0
0

Recommended Articles

Meet Urmila, an MBBS tutor from Bangalore

Urmila is a passionate teacher with over 8 years of experience in teaching. She is currently pursuing her Ph. D. She provides classes for Class 11, Class 12, MBBS and Medical tuition.  Urmila began her career in teaching long before she became a teacher. She used to provide classes for foreign national students in her college...

Read full article >

Meet Mohammad Wazid, a skilled trainer for...

Mohammad Wazid is a certified professional tutor for class 11 students. He has 6 years of teaching experience which he couples with an energetic attitude and a vision of making any subject easy for the students. Over the years he has developed skills with a capability of understanding the requirements of the students. This...

Read full article >

Meet Swati, a Hindi Tutor from Bangalore

Swati is a renowned Hindi tutor with 7 years of experience in teaching. She conducts classes for various students ranging from class 6- class 12 and also BA students. Having pursued her education at Madras University where she did her Masters in Hindi, Swati knows her way around students. She believes that each student...

Read full article >

Meet Raghunandan.G.H, a B. Tech Tutor from...

Raghunandan is a passionate teacher with a decade of teaching experience. Being a skilled trainer with extensive knowledge, he provides high-quality BTech, Class 10 and Class 12 tuition classes. His methods of teaching with real-time examples makes difficult topics simple to understand. He explains every concept in-detail...

Read full article >

Find Grade 12 Tuition near you
Grade 12 Tuition in Delhi
Grade 12 Tuition in Bangalore
Grade 12 Tuition in Chennai
Grade 12 Tuition in Hyderabad
Grade 12 Tuition in Kolkata
Grade 12 Tuition in Mumbai
Grade 12 Tuition in Pune
Grade 12 Tuition in Lucknow
Grade 12 Tuition in Noida
Grade 12 Tuition in Gurgaon
Online Tuition Class 12

Looking for Class 12 Tuition ?

Learn from the Best Tutors on UrbanPro

Are you a Tutor or Training Institute?

Join UrbanPro Today to find students near you