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

A frame of reference in which Newton’s laws of motion are not valid is called __________. (Cartesian frame of reference, inertial frame of reference, non-inertial frames of reference, absolute frame of reference)
non-inertial frames of reference
Narendra Kumar
0 0
7
Find out the probability on obtaining an even prime number on each die, when a pair of dice is rolled?
There is only one case (2,2) so probability = 1/36
Kumar Upendra Akshay
1 0
6
Which book is good for Commerce for Class PUC?
your school text is more than enough
Rajiv Kumar
0 0
8
The wave which require no medium for the propagation are known as __________. (Sound waves, Mechanical waves, Electromagnetic waves, None of these)
Electromagnetic waves
Narendra Kumar
What is representative elements?
The Periodic Table is a chart which organizes the elements according to similar chemical and physical properties. The Table can be viewed as being comprised of vertical columns and horizontal rows. The...
Sumit Kumar
0 0
6

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

Ask a Question

Related Lessons

Study Plan --- Key To Effective Learning
The objective of CBSE examinations/ study material is to provide teaching material to the students to enable them to obtain knowledge in the subject. Once you are aware of the syllabus, the next step is...

Kanwar Kanishk Thakur

0 0
0
Trade Discount
Trade discount is an income for the buyer of goods. It is shown a net of cost of purchase and does not get accounted as a specific ledger account.

Vijayakumar V.

1 0
0
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
Introduction to Trial Balance & its Components
Aims And Objectives At the end of the lesson you be able to: Understand of Sundry Debtors Understanding of Sundry Creditors Understanding of Basics of Trial balance Introduction All...

Dev Group

1 0
1
Effective learning
Dear all, Are you one of them who try to learn their lessons continuously for more than an hour? Do you get bored? Are you not able concentrate after some time? Not able to remember what you have learnt?...

Janani 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